How to deburr, descale, deflash, finish and polish precision aluminum alloy die casting gearbox housing

Deburring, deflashing, descaling, finishing and polishing technology for precision aluminum alloy die casting gearbox housing

Aluminum alloy die-castings are widely used in the production and manufacturing of mechanical parts in the electronics, automobile, aircraft, shipbuilding, motor, home appliance and other industries. They have the advantages of beautiful appearance, light weight, high strength and corrosion resistance. However, defects such as burrs, flash, and sharp edge often occur during the production process, so the surface finishing process of the product is particularly important. In this case, we will share a process technology and method for the automated and efficient deburring, deflashing, descaling of aluminum alloy die-casting parts for automobile gearbox housings. This polishing process solution is also suitable for the surface finishing of other die-casting parts made of soft metal materials such as zinc, magnesium, and copper.

    • jerrylu
    • 2024-06-03
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deburring,deflashing, descaling and polishing effect of aluminum die-casting gearbox housing

1. Aluminum alloy die-casting gearbox housing before polishing
surface burrs, oxide scale of aluminum die-cast gearbox housing

Materials:

aluminum alloy

Appearance:

deges burrs，surface oxide scale.

Shape:

irregular shape

Size:

300*260*150 MM

Pre-polishing process:

high pressure casting

Post-polishing process:

packing

2. Finishing and polishing requirements
  • deburring,deflashing,descaling.
  • smooth,bright surface, no burrs, no oxide scale.
3. Aluminum alloy die-casting gearbox housing polishing process details:
Process steps （1） finish to deburr,deflash,descale （2） cleaning （3） vibratory drying
Machinery and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Speed highest highest highest
Tumbling media Cone resin media Angle cut cylinder porcelain media corn cob polishing media
Abrasive media to workpiece ratio 4：1 4：1 8：1
Finishing and polishing compound finishing liquid cleaning liquid no
Water appropriate amount, liquid level does not exceed abrasive media appropriate amount, liquid level does not exceed abrasive media no
Polishing time 60 minutes 15 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibratory drying
4. The effect of deburring, deflashing, descaling and polishing the aluminum alloy die-casting gearbox housing
deburring, deflashing, descaling, polishing, brightening effect of aluminum alloy gearbox housing
finishing, polishing, burnishing effect of aluminum alloy gearbox housing

5. Additional instructions
  • The gearbox housing is produced by high-pressure casting of aluminum alloy. The product has high precision and a smooth surface, but burrs and flashes will appear on the edges and holes of surface, which need to be polished. Therefore, a finishing process combining rough deburring, deflashing, descaling and cleaning is adopted. The rough finishing adopts a vibratory finisher with medium cutting force cone plastic media. The sharp angle of the tumbling media can reach into the grooves, corners and inner walls to remove burrs and flash.
    A vibratory polishing machine is used for cleaning. The abrasive media is made of precision finishing material without cutting force angle cut cylinder porcelain polishing media. This tumbling porcelain media has a high density and has a polishing and brightening effect, which can further reduce the surface roughness.
  • In order to improve the anti-rust performance of the product after water treatment, use a vibrating dryer with corn cob drying media to absorb moisture and dry the inner and outer surfaces.

6. Final summary
  • In this case, we demonstrated the process solution of automated deburring, deflashing, descaling and polishing of a precision die-cast aluminum product, a gearbox housing, used in the automotive parts industry.
  • If you need professional technical support for the polishing of the following aluminum alloy, zinc alloy, magnesium alloy or copper alloy die-cast parts, you can refer to the above cases:
    Deburring, deflashing process technology methods for aluminum alloy die-casting automobile and motorcycle gearbox housings parts polishing process methods
    Automated deburring of aluminum alloy die-castings
    Deburring equipment for die-castings
    How to remove aluminum alloy burrs
    How to deal with aluminum alloy surface burrs
    How to deburr aluminum alloy auto parts
    Deburring methods for die-cast aluminum
    The best way to deburr die-cast aluminum parts
    Die-cast aluminum polishing and brightening technology
    How to deal with die-cast aluminum polishing
    Automated and efficient die-casting polishing and deburring solutions
    Surface treatment methods for aluminum alloy die-castings
    What are the surface treatment processes for aluminum alloy die-castings

Mechanical parts textile steel collar deburring, descaling, polishing and brightening process technology method

How to deburr, descale, polishing and brightening the textile steel collars of mechanical parts?

Steel collars, also called spinning rings, are important textile machinery parts in spinning mills. They are made of high-quality carbon steel, alloy steel, bearing steel and other materials. Since the textile process has high requirements for the surface roughness of steel collars, the surface polishing process of the product is particularly important. In this case, we will share a process technology and method for deburring, descaling, and fine finishing and polishing of high-precision bearing steel collars. This polishing process solution is also suitable for the surface polishing of textile steel rings or other machined parts made of hard metal materials.

    • jerrylu
    • 2024-06-03
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mirror polishing effect of deburring, derusting, descaling, brightening of textile steel collars for mechanical parts

1. The textile steel collar before polishing
Burrs and oxide scale on the surface of textile steel collars before polishing of mechanical parts

Materials:

bearing steel

Appearance:

edge burrs,surface oxide skin.

Shape:

circular ring

Size:

D46 MM

Pre-polishing process:

rolling

Post-polishing process:

packing

2. Finishing and polishing requirements
  • descaling, derusting
  • smooth, bright surface; no burrs, no oxide scale
3. Textile steel collar (spinning ring) polishing process details:
Process steps （1） deburring,descaling of rough finishing （2） fine polishing （3） centrifugal drying
Machinery and equipment centrifugal barrel finishing machine centrifugal barrel finishing machine centrifugal dryer
Speed highest highest highest
Tumbling media angle cut tri-star ceramic media 3P polishing media no
Abrasive media to workpiece ratio 4：1 6：1 no
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount,the liquid level is 30mm above the abrasive media appropriate amount,the liquid level is 30mm above the abrasive media no
Polishing time 30 minutes 30 minutes 5 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water centrifugal drying
4. Textile steel collar (spinning ring) finishing and polishing effect
Mechanical parts textile steel collar (spinning ring) deburring, descaling, rough finishing and polishing effect
Mechanical parts textile steel collar (spinning ring) after deburring, descaling, polishinig and brightening

5. Additional instructions
  • The steel collar (spinning ring) is made of high-hardness bearing steel. The material hardness is very high, and the surface is required to meet the requirements of mirror polishing. Therefore, a polishing process solution combining rough finishing and fine polishing is adopted. The rough finishing adopts a centrifugal barrel finisher, and uses heavy cutting force angle cut tri-star tumbling media for rough deburring and descaling. The sharp angle of the tumbling media can reach into the grooves, corners, and inner walls to remove burrs and oxide layers.
    Fine polishing still use centrifugal barrel polishing machines, and the ceramic media uses special precision finishing media 3P polishing media. This abrasive media has a high density and light cutting force. It can improve the surface brightness on the basis of precision cutting and achieve the effect of mirror polishing.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in a anti-rust liquid for anti-rust treatment after polishing. Finally, a spin dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case study, we demonstrated the automated surface deburring, derusting, descaling and polishing process for a steel collar (spinning ring), a precision mechanical component used in the textile industry.
  • If you need professional technical support for the following textile machinery parts polishing issues, you can refer to the above cases:
    Polishing process for precision textile machinery parts
    Deburring process for precision textile machinery parts
    Mirror polishing of textile steel collars
    Polishing of cotton spinning steel collars
    Polishing of fine yarn steel collars
    Polishing of wire rings

Automated finishing and polishing technology for cast iron parts

How to deburr, descale, polish, brighten the cast iron parts?

Items cast from molten iron are collectively called cast iron parts. Due to the influence of the manufacturing process, defects such as pores, pinholes, slag inclusions, cracks, pits, rust spots, burrs, and flash often occur. Do you know how to automatically remove burrs, flash, rust and scale, and polish and brighten cast iron parts? In this case, we will share the process technology and methods of deburring, derusting and descaling, and polishing brightness of an electric hardware used in the power industry – steel foot cast iron parts. This polishing process solution is also applicable to the surface polishing of other hard metal casting parts.

    • jerrylu
    • 2024-06-03
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deburring, derusting, descaling, polishing, brightening effect of precision bearing steel casting iron feet

1. Cast iron steel feet before polishing
The surface burrs and oxide scale of cast iron feet before polishing

Materials:

cast iron

Appearance:

thick oxide skin on the surface

Shape:

barbell-shaped iron castings

Size:

40*200MM

Pre-polishing process:

rolling

Post-polishing process:

galvanizing

2. Finishing and polishing requirements
  • deburring, descaling
  • smooth, bright surface, no burrs, no oxide scale
3. Cast iron steel foot polishing process details:
Process steps （1） rough finishing of deburring, descaling （2） fine polishing （3） vibratory dryer
Machinery and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Speed highest highest highest
Tumbling media Angle cut cylinder ceramic media Spherical stainless steel media corn cob polishing media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount，the liquid level does not exceed the tumbling media appropriate amount，the liquid level does not exceed the tumbling media no
Polishing time 60 minutes 30 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibratory drying
4. Cast iron feet after finishing and polishing
deburring, descaling, polishing, brightening of steel foot cast iron parts

rough finishing

steel foot cast iron parts after finishing and polishing

after fine finishing and polishing

5. Additional instructions
  • Cast iron parts are generally medium-to-large product components, and most of the surface treatments are done by sandblasting and shot blasting. However, this product is small in size and large in quantity, with a daily output of several tons. In order to improve efficiency and surface treatment quality, a vibratory finisher is used with heavy-cutting-force angle cut cylinder tumbling media for rough finishing. The sharp edge of the ceramic media can reach into grooves, corners, and gaps to remove burrs and oxide layers.
    For brightening polishing, a general-purpose vibratory polishing machine is used. The polishing media is made of stainless steel ball specially designed for polishing brightness, which can improve the surface brightness and achieve a shiny effect.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in a anti-rust liquid for anti-rust treatment after polishing. Finally, a vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case, we demonstrated the process of deburring, descaling, derusting, polishing, brightening of a steel foot of cast iron product using a polishing machine.
  • If you need professional technical support for the following polishing issues of cast steel parts, you can refer to the above cases:
    Polishing of cast iron parts
    How long does it usually take to polish cast iron parts
    Methods for deburring cast iron parts
    Automation of deburring cast iron parts
    Rust removal of cast iron parts
    How to remove rust from cast iron
    How to remove oxide scale from cast iron parts
    What are the methods for removing rust from cast iron parts
    How to remove rust from cast iron parts
    Polishing of cast iron parts
    Polishing of castings
    How to polish iron products
    Polishing and finishing of cast iron
    Polishing process of cast iron
    How to remove burrs from iron parts
    Descaling of castings
    Polishing process of cast iron
    What are the methods and techniques for polishing castings
    Polishing technology of pig iron
    Polishing process of electric hardware

Deburring,descaling and polishing method of copper alloy die castings (floor sockets)

How to chamfer, deburr, descale, polish and brighten copper alloy die castings?

Copper alloy die casting is a mature and versatile production process, which is used to manufacture a variety of hardware parts products. Commonly copper alloys include copper-aluminum alloy, copper-zinc alloy, copper-nickel alloy, etc. Die casting products will produce burrs, flash, scratches, oxide scale and other defects during the production process. Do you know what kind of finishing and polishing process copper alloy die castings need to go through to obtain a satisfactory surface effect? ​​In this case, we will share a copper alloy floor socket deburring, descaling, polishing, brightening process technology and methods. This polishing process solution is also suitable for the surface polishing of brass, zinc alloy, aluminum alloy, magnesium alloy and other products.

    • jerrylu
    • 2024-06-03
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deburring, derusting, descaling, polishing of copper alloy die castings (floor outlets)

1. copper alloy floor outlet before polishing
copper alloy die castings (floor outlets) surface burrs and oxide scale before polishing

Materials:

copper-zinc alloy

Appearance:

burrs on the edges,oxide scale on the surface

Shape:

square

Size:

120*120MM

Pre-polishing process:

die casting

Post-polishing process:

electroplating

2. requirements for polishing
  • chamfer and remove flash, grooves without burrs.
  • smooth and bright surface, no burrs, no oxide scale
3. Copper alloy floor outlets polishing process details:
Process steps （1） rough finishing, chamfering, deburring, descaling （2） fine polishing （3） vibratory drying
Machine and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Amplitude and speed highest speed highest speed highest speed
Tumbling media Cone resin media Spherical white corundum finishing media corn cob polishing media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level does not exceed the tumbling media appropriate amount, the liquid level does not exceed the tumbling media no
Polishing time 60 minutes 30 minutes 15 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water vibrating drying
4. copper alloy floor outlet after finishing and polishing
copper alloy floor outlet chamfering, deburring, descaling, polishing effect
copper alloy floor socket chamfering, deburring, descaling, polishing effect

5. Additional instructions
  • Copper alloy floor outlets have low hardness and are medium-sized product parts with a large daily processing quantity. Therefore, a vibratory polishing machine is used with a cone plastic media with low hardness to perform rough finishing. The conical tip can touch deep into the groove to remove burrs and chamfers.
    Fine polishing and brightening is also achieved by using a vibrating finishing machine, with spherical white corundum finishing media with high hardness and light cutting force, which can cut a small amount, further reduce the roughness and improve the surface brightness.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in the anti-rust liquid for anti-rust treatment after polishing. Finally, a vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case study, we demonstrate the process of chamfering, deburring, descaling and polishing the surface of a copper alloy die-casting component, a floor socket.
  • If you need professional technical support for the following product polishing issues, you can refer to the above cases:
    Die casting surface treatment process
    Die casting polishing process
    Die casting deburring process
    Die casting deburring method
    How to remove oxide scale from die casting
    Descaling of die casting aluminum
    Copper alloy die casting product polishing process
    Copper alloy hardware polishing
    Copper alloy mechanical polishing
    Copper alloy polishing skills
    Copper alloy die casting deburring method
    How to deal with copper alloy die casting deburring
    Copper alloy deoxidation method
    Aluminum alloy die casting product polishing process
    Zinc alloy die casting product polishing
    Aluminum alloy die casting product deburring
    Aluminum alloy hardware polishing
    How to deburr zinc alloy hardware

Polishing technology and method of powder metallurgy products

How to chamfer, deburr and descale the powder metallurgy parts?

Powder metallurgy is an advanced industrial technology that uses metal powder (or a mixture of metal powder and non-metallic powder) as raw material, and forms various types of products through forming and sintering. It is very suitable for mass production. In addition, some materials and complex parts that cannot be prepared by traditional casting methods and machining methods can also be manufactured using powder metallurgy technology, so it has received much attention from the industry. Do you know what kind of finishing and polishing process powder metallurgy products need to go through to obtain a satisfactory surface effect? ​​In this case, we will share a process technology and method for chamfering, deburring, descaling, polishing and brightening of powder metallurgy gear parts. This polishing solution is also suitable for the surface polishing of powder sintered sprockets, bushings, structural parts, 3D printing products and metal powder injection molding products.

    • jerrylu
    • 2024-06-03
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deburring,derusting and polishing effects of powder metallurgy gear parts

1. The surface of powder metallurgy gear parts before polishing
burrs and scale of powder metallurgy gear parts before polishing

Materials:

Iron-copper powder mixture

Appearance:

burrs on the edges of the teeth and grooves,
oxide scale on the surface

Shape:

gear

Size:

35*50MM

Pre-polishing process:

powder metallurgy

Post-polishing process:

packing

2. Requirements for polishing
  • chamfering of tooth edge, deburring of the grooves.
  • smooth and brighten surface, no burrs, no oxide scale.
3. Powder metallurgy gear parts polishing process details:
Process steps （1） rough deburring,chamfering,descaling （2） fine polishing （3） anti-rust drying
Machine and equipment vibratory finishing machine vibratory finishing machine vibratory dryer
Amplitude and speed highest speed highest speed highest speed
Tumbling media angle cut cylinder ceramic media spherical white corundum finishing media no
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing and polishing compound finishing liquid polishing liquid anti-rust liquid
Water appropriate amount, the liquid level does not exceed the tumbling media appropriate amount, the liquid level does not exceed the tumbling media no
Polishing time 60 minutes 30 minutes 30 minutes
Remark automatic separating and picking up, rinsing with water automatic separating and picking up, rinsing with water anti-rust liquid soaking, vibrating drying
4. Effect of powder metallurgy gear parts after finishing and polishing
powder metallurgy gear parts chamfering, deburring, descaling, polishing, brightening effect
chamfering, deburring, descaling, polishing, burnishing effect of powder metallurgy gear parts

5. Additional instructions
  • This powder metallurgy product is a small-sized workpiece, and the burrs are mainly concentrated on the the tooth edges. The daily processing quantity is large, so a vibrating finishing machine is used, and a heavy-cutting angle cut cylinder deburring tumbling media is used for rough finishing. The sharp corner of angle cut cylinder can reach into the grooves between the tooth edges to remove burrs and chamfer.
    Fine polishing and brightening is also achieved by using a vibratory polishing machine, with the high-hardness, light-cutting spherical white corundum finishing media for fine finishing, which can perform micro-cutting, further reduce roughness, and improve surface brightness.
  • Because the product processing quantity is large, the product separating can be done by using vibratory separator to improve efficiency.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water treatment, it is immersed in a rust inhibitor for anti-rust treatment after polishing. Finally, a vibrating dryer is used to dry the surface moisture and dry it.

6. Final summary
  • In this case study, we demonstrate the process of surface chamfering, deburring, descaling, polishing and brightening of a powder metallurgy gear component.
  • This process solution is also suitable for surface polishing of powder metallurgy sprockets, bushings, structural parts, 3D printing products and metal powder injection molding products.

Metal material hafnium parts polishing and deburring process technology method

How to automatically and quickly chamfer, deburr and polish small hafnium parts?

Metal materials include carbon steel, general-purpose alloys such as aluminum alloys, stainless steel, zinc alloys, etc.; and high-purity elemental metals, such as gold, silver, copper, aluminum, hafnium, gallium and other metals; high-purity precision alloy materials such as aluminum-copper alloys , molybdenum and niobium alloys, etc.; precious metals & rare metals such as titanium, iridium, tungsten, etc.; and rare earth metals such as cerium, gadolinium, lanthanum, etc., in the shapes of plates, coils, rods, pipes, wires, grain, blocks, ingots, Powder etc. To obtain a satisfactory surface effect, do you know what kind of finishing and polishing process is required for the burrs, flash, and scale produced after metal materials are cast, forged, rolled, drawn, pierced, stamped, sheared, etc. ? In this case, we will share the process solution for chamfering, deburring, and descaling and polishing the surface of metal hafnium parts. This polishing process is also suitable for surface polishing of other hard metal products.

    • jerrylu
    • 2024-06-03
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Metal material hafnium parts deburring, rust removal, polishing effect

1. Metal hafnium parts before polishing
burrs and oxide scale before deburring, polishing of metal material hafnium parts

Materials:

metal hafnium

Appearance:

burrs on the cut surface and oxide scale on the surface.

Shape:

cylinder

Size:

2.5*15MM

Pre-polishing process:

sawing

Post polishing process:

packing

2. Requirements for deburring and polishing
  • cutting end is chamfered without burrs.
  • smooth,brightened surface, no burrs, oxide scale.
3. Details of the polishing process of metal hafnium parts:
Process steps （1） rough finishing, chamfering, deburring and descaling （2） fine polishing （3） drying
Machine and equipment centrifugal barrel finisher centrifugal barrel finisher centrifugal spin dryer
Amplitude and speed high speed high speed high speed
Tumbling media spherical ceramic deburring media spherical white corundum finishnig media no
Abrasive media to workpiece ratio 4：1 6：1 no
Finishing and polishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level exceeds the abrasive media by 20mm appropriate amount, the liquid level exceeds the abrasive media by 20mm no
Polishing time 30 minutes 30 minutes 15 minutes
Remark manual separating and picking up, rinsing with water manual separating and picking up, rinsing with water drying, no separating
4. The effect after polishing of metal hafnium parts
The effect after chamfering, deburring, descaling and polishing of hafnium metal small parts
comparison of the polished effects of hafnium metal small parts

5. Additional instructions
  • Because this hafnium product is a small-sized workpiece with high hardness, it requires strong cutting force to chamfer, deburr and remove scale. Therefore, the rough finishing process is using high-speed centrifugal barrel finishing machine, with heavy cutting force ceramic deburring ball.
    The precision finishing and polishing brightness also uses a centrifugal barrel finishing machine, with high hardness and light cutting force white corundum polishing ball to improve surface brightness.
  • Because the number of products processed is small, product separating can be done manually using screens to reduce equipment purchase costs.
  • In order to improve the anti-rust and anti-corrosion performance of the product after being exposed to water, a centrifugal spin dryer used for drying.

6. Final summary
  • In this case, we demonstrate a process for surface chamfering, deburring and polishing of parts machined with metallic material – hafnium.
  • This process is also suitable for surface polishing of other hard metal material processing parts.

How to deburr,descale, polish stainless steel sheet metal parts?

Automatic and rapid chamfering, deburring and polishing method for special-shaped non-standard stainless steel sheet metal parts

Stainless steel sheet metal processing parts are generally cut by laser cutting machines, sheared by shears, stamped by punches, bent by bending machines, or welded. So do you know what kind of finishing and polishing process this stainless steel product needs to go through to chamfer, remove burrs, flash, rust and scale to obtain a satisfactory surface effect? In this case, we will share the surface chamfering and deburring polishing process of a special-shaped non-standard stainless steel laser-cut sheet metal part. This polishing process is also suitable for surface polishing of carbon steel, aluminum alloy and other materials.

    • jerrylu
    • 2024-06-03
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Stainless steel sheet metal processing parts deburring, derusting, polishing effect

1. Stainless steel sheet parts before polishing
burrs and oxide scale before polishing of stainless steel sheet parts

Materials:

stainless steel

Appearance:

burrs, sharp cutting edge, protective film on the back

Shape:

simple curve

Size:

0.3*50*150MM

Pre-polishing process:

laser cutting

Post polishing process:

powder coating

2. Requirements for finishing and polishing
  • smooth surface,no burrs, scale.
  • chamfer,no cutting edge
3. Details of polishing process for stainless steel sheet parts
Process steps （1） rough finishing chamfering and deburring （2） drying
Machine and equipment centrifugal barrel finishing machine vibratory dryer
Amplitude and speed slow speed full speed
Tumbling media cone resin media corn cob drying media
Abrasive media to workpiece ratio 4：1 8：1
Finishing compound finishing liquid no
Water appropriate amount, the liquid level exceeds the abrasive media by 20mm no
Polishing time 30 minutes 30 minutes
Remark automatic separating and picking up, rinsing with water dry parts and wipe away water stains
4. Stainless steel sheet parts after polishing
stainless steel laser cutting metal sheet parts chamfering, deburring, descaling, polishing effect
stainless steel laser cutting metal sheet parts chamfering, deburring, descaling, brightening effect


Note: There is a plastic protective film on the back.

5. Additional instructions
  • Because stainless steel metal sheet processing parts are easily deformed, a centrifugal finishing machine with a small-capacity working barrel is used to reduce the operating speed and use it with softer texture cone-shaped resin media (also called plastic media) is used to chamfer and deburr. If you use ceramic tumbling media or other very hard abrasive media will cause problems such as deformation and bending of the workpiece, and ceramic deburring media can easily contaminate the stainless steel surface and make the surface black.
  • So why don’t polish parts use vibratory polishers? Because the vibrating polishing machine will cause the thin parts to stick to each other, and multiple pieces will fit together, which will not achieve the finishing and polishing effect.
  • Products can be separated automatically using a vibrating separator, to control the vibration amplitude of the vibrating separator so that no bending deformation occurs due to mutual collision.
  • In order to improve the anti-rust and anti-corrosion performance of the product after water cleaning, vibrating dryer, with corn cob polishing media, dry the moisture and wipe away water stains on the surface of the product.

6. Final summary
  • In this case, we demonstrate a process for surface chamfering and deburring of stainless steel laser-cut metal sheet parts using resin finishing media and corn cob drying media.
  • This process is also suitable for surface polishing of sheet metal parts such as carbon steel and aluminum alloys.

Non-standard stainless steel wire forming special-shaped spring chamfering, deburring and polishing solution

How to polish non-standard stainless steel wire formed special-shaped springs?

Stainless steel wire formed special-shaped springs are used in product spare parts and instrument components in the chemical, valve, petroleum, and electric power industries, such as motor brushes, switches, video cameras, and computer accessories. This type of precision spring requires both high strength and a smooth and bright surface. So do you know what kind of finishing and polishing process this stainless steel product undergoes to obtain a satisfactory surface effect? In this case, we will share a polishing process for chamfering and deburring the surface of a non-standard stainless steel wire-formed special-shaped spring. This polishing process is also suitable for surface polishing of compression springs, torsion springs, tension springs, clasp springs, medical springs, special-shaped rods, special-shaped springs and other products.

    • jerrylu
    • 2024-06-03
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Stainless steel spring deburring, descaling, polishing effect

1. Stainless steel wire formed special-shaped springs and buckles before polishing
burrs, oxide scale of stainless steel spring

Materials:

stainless steel

Appearance:

oxide scale and burrs on surface,dark gray.

Shape:

simple curve.

Size:

Ø3*10MM

Pre-polishing process:

cut to shape

Post polishing process:

finished product inspection

2. Requirement for polishing
  • smooth surface, no burrs and scale.
  • reduce surface roughness, increase gloss, and improve brightness.
  • close to mirror polishing effect.
3. Details of stainless steel wire forming special-shaped spring and buckle polishing process
Process steps （1） Coarse finishing to remove burrs and scale （2） Fine polishing （3） Mirror polishing
Machine and equipment vibrating bowl finishing machine vibrating bowl finishing machine tumbling barrel finishing machine
Amplitude and speed highest amplitude,full speed highest amplitude,full speed highest amplitude,full speed
Tumbling media spherical ceramic deburring media stainless steel ball walnut shell polishing media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level should not exceed the tumbling media appropriate amount, the liquid level should not exceed the tumbling media polishing paste
Polishing time 1 hour 30 minutes 6 hours
Remark pick up by hand and rinse with water pick up by hand and rinse with water mirror polishing
4. The effect of stainless steel wire forming special-shaped springs and buckles after finishing and polishing
deburring, descaling and polishing effects of stainless steel wire formed special-shaped springs and buckles
deburring, descaling and brightening effects of stainless steel wire formed special-shaped springs and buckles

5. Additional instructions
  • Because stainless steel is harder material, ceramic deburring ball is used for rough finishing to remove scale and burrs. If you use angle cut triangle ceramic deburring media or angle cut cylinder ceramic deburring media with sharp corners or edges will cause scratches, pitting and other problems on the surface of the product.
  • The workpiece material is hard and has no edges and corners, so it can be automatically separated by a machine. There will be no surface damage caused by collision with each other, which greatly improves the efficiency of discharging materials.
  • For stainless steel product parts, polish with stainless steel polishing ball is very effective in brightening. The surface of the product after rough finishing has no luster, but it will become bright after vibratory fine finishing and polishing with stainless steel media.
    In order to further improve the smoothness and brightness of the product surface, finally use tumbling barrel polishing machine, combined with walnut shell polishing media, achieves a quasi-mirror polishing effect with the support of polishing paste.

6. Final summary
  • In this case, we demonstrate a process of deburring, descaling and brightening for the surface of stainless steel wire-formed special-shaped springs using ceramic deburring media, stainless steel polishing media and mirror polishing media.
  • This process is also suitable for surface polishing of compression springs, torsion springs, tension springs, buckle springs, medical springs, special-shaped rods, special-shaped springs, precision buckles and other products.

How to polish zinc(aluminum) alloy handles?

Mirror polishing method and solution for zinc alloy (aluminum alloy) handles

In this case, we will discuss the polishing process of a zinc alloy (aluminum alloy) door handle.

    • jerrylu
    • 2024-06-03
    • 0 Comments

     

Zinc alloy, aluminum alloy hardware deburring, descaling, mirror polishing, brightening effect

1. Zinc alloy and aluminum alloy handle hardware before polishing
Zinc alloy, aluminum alloy hardware surface burrs, oxide scale

Materials:

zinc alloy

Appearance:

surface oxide scales,burrs,gray-white.

Shape:

simple curve. holes in the surface.

Size:

109*20*16mm

Pre-polishing process:

die cast

Post polishing process:

plating

2. Requirements of polishing
  • smooth surface without damage
  • descaling
  • Reduce surface roughness, increase gloss, and improve brightness
3. Details of the zinc alloy hardware handle polishing, deburring and descaling process
Process steps （1） coarse finishing to deburr,descale （2） fine polishing and brightening （3） drying
Machine and equipment vibratory bowl finisher vibratory bowl finisher vibratory dryer
Amplitude and speed highest amplitude,full speed highest amplitude,full speed highest amplitude,full speed
Tumbling media cone resin media spherical stainless steel media corn cob drying media
Abrasive media to workpiece ratio 4：1 6：1 8：1
Finishing compound finishing liquid polishing liquid no
Water appropriate amount, the liquid level should not exceed the tumbling media appropriate amount, the liquid level should not exceed the tumbling media no
Polishing time 1 hour 30 minutes 30 minutes
Remark pick up by hand and rinse with water pick up by hand and rinse with water pick up by hand and rinse with water
4. Effect after finishing, polishing and brightening
surface treatment effect of zinc alloy,aluminum alloy hardware deburring,descaling,polishing,brightening
surface treatment effect of zinc alloy,aluminum alloy hardware deburring,descaling,finishing,burnishing

5. Additional instructions
  • Because the workpiece material is relatively soft, resin media can only be used to roughly remove scale and burrs. If you use ceramic deburring media, so the hardness is too high and the sand grits are too coarse, it will wear the surface of the product and cause scratches, pitting, color contamination and other problems.
  • Also because of the material, if a machine is used for automatic separating, the collision of workpieces will cause surface damage.
  • Zinc alloys can easily re-oxidize when exposed to water and air. Therefore, we need to dry the water immediately after polishing.

6. Final summary
  • In this case, we demonstrate a process of using a resin (plastic) finishing media to deburr, remove scale and brighten on the surface of a zinc alloy handle.
  • This process is also suitable for polishing belt buckles, jewelry pendants, souvenirs, craft gifts and other products produced from aluminum alloy and copper die-casting parts.

The descaling, polishing, brightening process of motorcycle pedal starter lever

How to polish the motorcycle pedal starter lever?

In this case, we will discuss the finishing and polishing process of descaling and deburring from a high-hardness forged iron motorcycle starter rod.

    • jerrylu
    • 2024-06-03
    • 0 Comments

     

motorcycle parts, starter levers, starter rod, deburring, descaling, polishing, brightening effect

1. Motorcycle starter lever before polishing
motorcycle parts, starter levers, starter rod, deburring, descaling, polishing, brightening before

Material:

Pig iron forgings

Apparance:

oxide scales and burrs

Shape:

S-shaped curve

Size:

300*7mm

Pre-polishing process:

Pig iron forging.

Post polishing process:

Finished or electroplated.

2. Requirements for finishing and polishing
  • The surface is smooth and burr-free.
  • Remove surface oxide scale.
  • Reduce surface roughness, increase gloss, and improve brightness.
3. Details of the finishing, polishing, deburring and descaling process for motorcycle parts (starter lever, starter rod, spark lever)
Process steps （1） Coarse finishing to remove burrs and scale （2） Fine polishing （3） Drying
Machine and Equipment Vibratory bowl Finishing Machine Vibratory bowl Finishing Machine Vibratory Dryer
Amplitude and speed highest and full speed highest and full speed highest and full speed
Tumbling Media angle cut cylinder ceramic deburring media ballcone stainless steel media corn cob polishing media
Abrasive to workpiece ratio 6：1 6：1 8：1
Finishing compound finishing liquid polishing liquid No
Water Appropriate amount, the liquid level should not exceed the tumbling media Appropriate amount, the liquid level should not exceed the tumbling media No
Finishing time 4 hours 30 minutes 30 minutes
Remark parts separated and picked up automatically, rinsed with water parts separated and picked up automatically, rinsed with water dry the water and wipe away the water stains
4. Effect after finishing and polishing
Rough deburring and descaling of motorcycle parts, starter levers, starter rod

deburring and descaling of forging motorcycle starter lever

Fine polishing and brightening of motorcycle parts, starter levers, starter rod

polishing and brightening of forging motorcycle starter lever

5. Additional information
  • Because the motorcycle starter lever accessories are made of pig iron forgings and the material is very hard, ceramic media with heavy cutting force is used to roughly remove scale and burrs. In order to fully finish the corners of the parts or the toothed inner wall of the inner ring, the shape of the ceramic media is a chamfered cylindrical tumbling deburring media, and the smooth curve of the cylinder itself can have a smooth surface on the starting rod. Smoother polishing effect. It should be noted that if the starting rod is made of aluminum forgings, then our tumbling finishing media cannot use ceramic media, but needs to use softer materialResin media (also called plastic media).
  • These motorcycle parts are not afraid of hitting each other, so in order to improve the screening efficiency, the finishing machine uses the vibrating bowl finisher with separator.
  • Iron workpieces are easily oxidized again when exposed to water and air. Therefore, we need to dry the water immediately after finishing and polishing.

6. Final summary
  • In this case, we demonstrate the process of deburring and descaling on the surface of a forged motorcycle workpiece, also called a starter lever, starter rod, and spark lever, and further improving the surface gloss and brightness.
  • This process is also suitable for polishing parts and components such as automobiles, bicycles, fishing gear, pumps and valves, sewing machines, equipment and tooling produced from forged iron.

How to polish the surface of engine connecting rod parts?

Do auto parts, engine parts, engine piston connecting rods need to be polished? The answer is yes. Engine connecting rods on the market are made of various materials, including titanium alloy, stainless steel, cast iron, forged iron, aluminum alloy or zinc alloy. During the machining process, quality problems such as burrs, flash, cracks, tool lines, rust, and scale will inevitably occur on the surface. In order to improve the surface quality and service life of connecting rods, ShineTec does our best to provide you with the best deburring, descaling, finishing and polishing processes, methods, collections and solutions for your products. The special finishing and polishing machines, equipment and tools produced by us can solve various problems you encounter in connecting rod polishing, which can be called the connecting rods polisher.

Finishing and polishing of titanium alloy engine piston and connecting rod accessories

Finishing and polishing of titanium alloy engine connecting rod parts

Titanium alloy connecting rods are used in the engines of many sports vehicles due to their high strength and excellent performance. Light weight but high durability are the outstanding advantages of titanium connecting rods.
This kind of engine parts generally uses a vibrating finishing and polishing machine to perform polishing processes such as deburring, descaling, deflashing, chamfering, and brightening. The main polishing process is divided into two processes: rough finishing and fine finishing.
Rough finishing uses high cutting strength ceramic tumbling media combined with chemical finishing liquid, and fine finishing uses high density stainless steel media combined with acidic chemical polishing liquid to improve the surface brightness of the product.

Finishing and polishing of cast iron engine piston and connecting rod accessories

Finishing and polishing of cast iron engine connecting rod parts

Engine connecting rods made of cast iron are weaker than those made of stainless steel. Generally, low carbon steel is used for production. The main advantage of this product is the low material cost.
A Vibratory Finishing Machines is also used for rough finishing and fine polishing. For coarse finishing, ceramic tumbling media and finishing liquid are used to remove burrs, oxide scales, and flash edges. For fine polishing, stainless steel polishing media and acidic polishing liquid are used to brighten the surface.

Machined engine piston connecting rod accessories finishing and polishing

Finishing and polishing of machined engine piston connecting rod parts

Machined connecting rods can be made from different materials of metal or alloys. This kind of connecting rod will bear high pressure in the engine, so good finishing and polishing of the product surface can repair some surface defects such as cracks, pits, burrs, flashes, etc. to ensure that the connecting rod will not break under pressure.
A vibratory polishing machine can be used for polishing. If the volume and quantity of workpieces are small, a Centrifugal Barrel Finishing Machine can also be used. Different metal or alloy materials require different finishing and polishing abrasive media.

Finishing and polishing of forged engine piston connecting rod accessories

Finishing and polishing of forged engine piston connecting rod parts

Forged connecting rods are stronger than cast iron connecting rods. The surface of the forged connecting rod is definitely rough and not smooth, so the finishing process of deburring and descaling is necessary.
Universal vibratory finishing and polishing machines can be used for surface finishing and polishing. If you pursue short time and high efficiency, you can also use a centrifugal barrel finishing machine. It’s just that the purchase cost of the machine is higher than that of the vibration machine.
The abrasive media need to be matched according to the material and the shape and size of the workpiece.

Aluminum alloy or zinc alloy engine piston connecting rod accessories finishing and polishing

Finishing and polishing of aluminum alloy engine piston connecting rod parts

There are many benefits to using aluminum alloy or zinc alloy connecting rods compared to cast or forged connecting rods. Although its strength is not as strong as connecting rods made of other materials, this connecting rod can improve shock absorption performance and help reduce stress damage to the engine crankshaft.
Vibrating finishing machines or centrifugal barrel finishing machines can be used to debur, descale and deflash. Tumbling media, there is no doubt that Resin Media（Polyester/Plastic Media）must be used，For polishing brightness, Porcelain Media, High Density Porcelain Media, orStainless Steel Media can be used.

Finishing and polishing of supercharged engine piston and connecting rod accessories

Finishing and polishing of supercharged engine piston connecting rod parts

This type of connecting rod needs to have strong fatigue resistance. Can be produced in different metals or alloys.
A slight defect on the surface of the product may lead to substandard quality, so finishing and polishing is a necessary process. We also recommend using a vibratory finishing and polishing machine.

  • 1. What part of the engine is the connecting rod?
  • The piston connecting rod belongs to the category of automotive parts and is an essential accessory for an engine. It is installed between the piston and the engine crankshaft. Also called connecting rod assembly. It is responsible for converting the linear motion of the piston into the rotational motion of the crankshaft.
  • 2. What is the function of finishing and polishing engine connecting rods?
  • Polishing your engine connecting rods has many benefits:

    2.1 Fine finishing and beautiful surface.
    The correct polishing process can give the connecting rod a beautiful surface treatment.

    2.2 Improves the durability of connecting rods.
    Finishing and polishing can remove burrs and scale from the surface of the connecting rod, which are key quality defects that affect the life of the connecting rod. Therefore, removing these imperfect surface defects through finishing and polishing methods can greatly improve the durability of the connecting rod.
  • 3. Can you explain how traditional engine connecting rods are polished?
  • The traditional way of polishing connecting rods is manual. It requires a lot of labor and is an annoying process.
    They all use a polishing wheel. Polishing heads of different sizes can be installed on this polishing wheel. According to the different connecting rods, different polishing heads can be replaced for operation. It is also necessary to use polishing paste to speed up the polishing process and make the surface of the connecting rod shiny.
  • 4. How is ShineTec’s engine connecting rod polishing machine polished?
  • Generally speaking, it is divided into two processes. The first is rough finishing, deburring and descaling. Just put your connecting rod blank and tumbling abrasive media into the machine, and then add an appropriate amount of finishing liquid and clean water. After the rough finishing process is completed, the connecting rod can be taken out and transferred to the fine polishing process, which uses polishing to improve the gloss and brightness of the product surface. Just put the connecting rod and the porcelain abrasive media for fine polishing into the machine, add an appropriate amount of polishing chemical liquid and water, and start the machine. The entire polishing process is fully automatic, and you can get a shiny finished connecting rod after the polishing is completed.
  • 5. What are the benefits of using ShineTec’s finishing and polishing machine to polish engine connecting rods?
  • The benefits are many:

    5.1 Excellent surface quality. The traditional manual polishing method depends on the skills and skilled procedures mastered by the workers. The finished products polished by each worker will result in different surface polishing quality, and it is difficult to achieve consistent surface quality of the finished products.
    Polishing with our ShineTec finishing machines can avoid these problems and achieve consistent surface polishing quality.

    5.2 Save man-hours. Polishing each piece by hand requires many man-hours. A worker can only handle one piece of connecting rod at a time. Using ShineTec’s engine connecting rod deburring and descaling solutions, large batches can be processed fully automatically at one time. The operating hours are greatly reduced.

    5.3 low cost. Finishing and polishing mainly consist of two costs. One is the purchase cost of machinery and equipment, and the other is the labor cost of polishing. Manual polishing requires a large number of workers, but using our ShineTec professional finishing machine to polish large quantities of connecting rods only requires one operator. The one-time setup cost of the equipment will be higher than manual polishing tools such as polishing wheels, but it can be used for a long time. The tumbling ceramic media can generally be used for several months or even years after purchase. They are not more expensive than grinding wheels and polishing heads. The key is This saves a lot of labor costs, and overall, the cost of polishing will be greatly reduced.

    5.4 No specially trained polishing operators are required. Hand polishing requires extensive training of operators upfront. Using our mechanized high-volume automated finishing and polishing solutions is simple and requires no dedicated employee training.

    5.5 Not a labor-intensive polishing process. Traditional manual polishing is a typical labor-intensive process and requires a lot of labor. The polishing process of engine piston and connecting rod parts provided by ShineTec is completely mechanized. Only one worker is required to control the machine’s switch, which greatly reduces the use of labor.

    5.6 Non-destructive surface polishing process. The quality of hand polishing depends on the skill of the polisher. Because manpower is uncontrollable, sometimes the polishing process may inevitably cause damage to the product surface. Using ShineTec’s finishing and polishing process, as long as the correct process flow and tumbling ceramic media are determined through process samples in the early stage, the final product of the engine connecting rod will have a uniform surface quality.

    5.7 Extremely low maintenance costs.
    When determining the polishing process for engine connecting rod accessories, routine maintenance costs are also an important factor that should be considered. ShineTec’s deburring and polishing machines are easy to use and operate and do not require additional special tools or trained operators. Therefore, daily maintenance costs are extremely low.

    5.8 Large batch processing. ShineTec’s engine connecting rod polishing machine has the capability of mechanized processing of large batches at one time. It can not only polish the same products in batches, but also deburr and polish connecting rods with different shapes and sizes in the same batch. It can be called an engine connecting rod polisher.
  • 6. Can you explain the differences between polishing by different finishing machines?
  • ShineTec’s finishing and polishing machines mainly have three common types that can be used for professional polishing of engine connecting rods. It can meet the needs of deburring, descaling, degreasing, deflashing, polishing and brightening.

    6.1 Vibratory Finishing Machine。 The vibrating finishing machine is the most commonly used machine for polishing engine connecting rod parts. This model is the easiest to use and operate. The high-strength and elastomer PU lining of the working chamber can protect the connecting rod and tumbling ceramic media from hitting and cutting the inner wall iron plate. It is the most cost-effective and economical engine connecting rod polishing process solution. It can feed large quantities of connecting rods at one time and is suitable for polishing small and medium-sized engine connecting rods.

    6.2 Rectangular Tub Finishing Machine。 Vibratory rectangular tub polishers can be used to polish long wishbones and crossmember links. The rectangular working chamber can be divided into several independent spaces with partitions, so that each connecting rod can be polished in a separate space without collision damage.

    6.3 Centrifugal Barrel Finishing Machine. The centrifugal barrel finisher relies on centrifugal force to drive the working barrel for polishing. It is mainly used to clean and polish connecting rods during the fine polishing stage. The polishing efficiency of this model is very high, and it can produce a mirror-like polishing effect on the surface of the connecting rod within half an hour. Centrifugal barrel finishing machines are divided into two types according to different loading and unloading methods. One is that the barrel has a relatively large capacity and cannot be removed. There is a sealing cover on the barrel, and loading and unloading tumbling media go directly through the opening of the barrel. The other is that the working barrel has a small capacity and can be taken out of the machine. The loading and unloading tumbling media are in the machine. Performed externally, suitable for smaller sized connecting rod polishing.
  • 7. Are there any differences in finishing and polishing between the different abrasive media provided by ShineTec?
  • The abrasive media used to remove burrs, scale and flash from engine connecting rods are also called ceramic tumbling media or polishing media. Each abrasive media corresponds to a different polishing process. Ceramic deburring media are generally used for deburring, deflashing, and descaling. Stainless steel media or polishing porcelain media and high-density porcelain media are generally used to improve brightness. For different shapes and sizes of connecting rods, each tumbling media has different shapes and sizes to choose from.

    7.1 Ceramic Deburring Media. Deburring media is made by mixing brown corundum sand with cutting force with clay, alumina powder, etc., and then sintering it in a high-temperature kiln after shaping. According to the different particle sizes of brown corundum sand, it is divided into heavy cutting, medium cutting and light cutting types, which are suitable for different materials. To measure the quality of a deburring media, there are several indicators such as cutting force, wear resistance, dimensional consistency, hardness, and color difference. The ceramic media produced by ShineTec all use the best first-grade brown corundum new sand, clay raw materials from major manufacturers in the industry, strict molding production processes, and proper sintering temperature control. The above indicators of the tumbling ceramic media are all Ahead of domestic peers. Especially in the key indicator of wear resistance, it is far ahead of competing products. The use time can be extended by 2-3 times, which can save a lot of consumable costs for the manufacturers.

    7.2 Resin Media. Also called plastic media, polyester media, it is obtained by mixing brown corundum sand with resin and curing it. There are also three different finishing levels, heavy cutting, medium cutting, and light cutting. Commonly used shapes include cone, triangle, tetrahedron, and bullet shape. This kind of tumbling finishing media is suitable for polishing soft parts made of aluminum alloy, zinc alloy, copper and other materials.

    7.3 Porcelain Media. This kind of tumbling abrasive media is mainly made of sintered kaolin and alumina powder. It does not contain brown corundum sand and has no cutting force. Therefore, it is mainly used to polish the surface brightness. That is the last fine finishing and polishing process. The quality of the product is mainly determined by the alumina powder content, which ranges from 30% to 70%. The higher the content, the greater the density and specific gravity, and the higher the gloss and brightness of the polished product surface. Of course, sintering temperature is also a key factor affecting quality. Like brown corundum abrasives, tumbling porcelain media have various shapes, including sphere, triangle, oblique triangle, right cylinder, oblique cylinder, three-star, oblique three-star, ellipse, etc., and the specifications and sizes also vary widely.

    7.4 Stainless Steel Media. Since the specific density of stainless steel can reach 7.8 grams/cubic centimeter, which is three times that of porcelain media, the surface of the polished product has the highest density and the highest brightness. Suitable for surface polishing of hard metals. Not suitable for soft metal workpieces such as aluminum alloys and copper. This polishing media has virtually no wear and can be used continuously for decades. The stainless steel media shapes include ball, ballcone, ufo, and pins shapes, and the materials include AISI201, AISI304, AISI316, AISI420, and AISI440C, which are suitable for different acidic or perishable environments.

    7.5 Walnut Shells or Corncob Media. Walnut shell or corncob media is a biodegradable vegetable abrasive. It is mainly used for the drying process after polishing the engine connecting rods. This tumbling abrasive media also comes in different sizes depending on the particle size. In addition to absorbing water and drying, it also has the ability to adsorb impurities and dust on the surface of the connecting rod to the abrasive, playing a cleaning role. It is a dust-free cleaning process.
  • 8. Are there any engine connecting rods that can be polished using ShineTec’s polishing machine?
  • ShineTec’s mass finishing machines are suitable for almost all types of engine connecting rods on the market.

    8.1 Titanium alloy connecting rod. Titanium alloy connecting rods are high-end products on the market because of their strength and durability. Its performance is unmatched by other connecting rod products. A vibratory finishing machine can be used for cleaning and polishing.

    8.2 Cast iron connecting rod. Because it is mainly produced from low carbon steel, its strength is lower than that of stainless steel connecting rods. Due to its low production cost, it is the most widely used connecting rod product on the market. Vibratory finishing machines can be used for finishing and polishing.

    8.3 Machined connecting rods. The material can be produced from different metals, depending on the type of engine used. The most suitable machine is a centrifugal barrel finishing machine, which can quickly remove tool lines, burrs, and scale. A vibrating finisher can also be used.

    8.4 Supercharged engine engine connecting rods. Because it is used in high fatigue strength environments, high-strength materials will be used to produce this connecting rod. Generally used in high-horsepower heavy-duty engines. Proper polishing process can repair surface defects and extend the service life of connecting rods. Suitable for polishing using a centrifugal barrel finishing machine.

    8.5 Forged engine connecting rods. Compared with cast iron connecting rods, forged connecting rods have higher durability. The tighter metal crystal structure formed inside the forged parts ensures higher strength of the product. But forged connecting rods have more surface imperfections. Vibratory or centrifugal barrel finishing machines can be used to polish this product.

    8.6 Aluminum alloy connecting rod. Aluminum alloy connecting rods have better shock absorption performance. It can reduce the stress on the engine crankshaft and extend its service life. Because it is a soft metal, the tumbling finishing media used for deburring, descaling must be a resin tumbling media. The mass finishing machine can be a vibratory finishing machine or a centrifugal barrel finishing machine.

What is stainless steel media?

About Stainless Steel Media

  • 1. What is stainless steel media?
  • As the name suggests, stainless steel media are tumbling media made of stainless steel. This is a kind of mass finishng, tumbling polishing, brightening and smoothing abrasive media mainly used in the finishing industry.
    Stainless steel media act on your product parts and workpieces and have the functions of deburring, cleaning, degreasing, brightening, and mirror polishing. Most metal parts can obtain a shiny surface effect after polishing.
    High-quality stainless steel raw materials produce high-quality stainless steel media. They have a long service life and can be used for a long time. They are the best choice for tumbling, mass finishing and polishing processes. At the same time, the impact of stainless steel media can improve the surface strength of product parts and repair surface defects.

  • 2. What are the uses of stainless steel media?
  • Stainless steel media are widely used in the finishing and polishing industry of tumbling, vibrating, mass finishing and polishing. Specific applications are as follows:

    2.1 Deburring. Stainless steel media also have the function of removing burrs. Some small burrs and sharp teeth on the edges of parts and hole walls can be chamfered and flattened by scraping with stainless steel media with sharp corners or edges to achieve the effect of removing burrs.

    2.1 Turning tool marks removing. This process is similar to deburring. The turning tool marks left after the machining of parts can be removed by the impact and scraping of stainless steel media.

    2.2 Polishing. The main function of stainless steel media is to brighten the surface of product workpieces. Through the tumbling and rotating motion of the machine, the high density stainless steel media impacts the surface of the part, changing the metallographic structure of the metal surface layer. The arrangement of the metal grains is reorganized to form a dense layer, which enhances the diffuse reflection of light, making the surface Becomes shiny and sparkling, achieving a near-mirror polished effect.

    2.3 Degreasing. Through the combined use of stainless steel media and cleaning liquid, dust, sludge, and grease on the internal and external surfaces of parts can be removed. Manual cleaning of oil stains is a time-consuming and labor-intensive process. Using a tumbling finishing machine and stainless steel media for cleaning can improve the brightness and gloss of the surface of the parts while removing oil and stains. It is a process that gets twice the result with half the effort.

    stainless steel media polishing effect
  • 3. What types of stainless steel media are there?
  • International Standards 1Cr18Ni9 0Cr19Ni9 0Cr17Ni12Mo2 3Cr13 9Cr18
    China 302 304 316 420 440C
    USA SUS302 SUS304 SUS316 SUS402 SUS440C
    JP X12CrNi188 X5CrNi189 X5CrNiMn18 X30Cr13
    Germany 1.43 1.4301 1.4401 1.4028
  • 4. What shapes do stainless steel media have?
  • Stainless steel media for polishing come in a variety of shapes:

    4.1 Sphere Ball. Stainless steel balls are the most commonly used stainless steel media, also called stainless steel beads. This is a polishing media with uniform size and smooth appearance.

    4.2 Ballcone. Ballcone is also a commonly used stainless steel media, also called stainless steel ufo media, often mixed with stainless steel balls for polishing. Because the rounded edges on the outside can be polished into grooves, seams, dead corners and other parts of parts, it is very suitable for polishing product parts with complex irregular shapes.

    4.3 Angle cut cylinder. Cutting an end face of the cylinder diagonally is also to polish some hard-to-reach parts. The cylinder part is suitable for polishing some parts with inner holes, teeth and other curved surfaces.

    stainless steel ball media
    ufo-shaped polishing stainless steel media
  • 5. What are the specifications of stainless steel media?
  • Stainless steel ball： 2mm-11 mm.

    Ballcone： 1*3mm，2*4mm，3.5*5.5mm，4.5*7mm，6*8mm，8*11mm.

    Angle cut cylinder： 2*8mm，3*8mm，4*8mm

  • 6. Which parts can be polished with stainless steel media?
  • If your product parts are made of metal and have a hardness equal to or less than 304/302 stainless steel, then polishing with stainless steel media is the best choice. While polishing, stainless steel media can also remove surface oxide scale, turning tool marks and other defects on brass, copper, aluminum, zinc and other products.
  • 7. How do stainless steel media polish product parts?
  • Put the stainless steel media into the working barrel of the finishing polishing machine, add water and an appropriate amount of polishing liquid. After the machine is started, the stainless steel media and the workpiece will have a tumbling and rotating motion in the machine. The abrasive media and the parts rub against each other, which will cause the surface to change. Scrape off the scale, burrs, residue, etc. In addition, stainless steel media have an impact force on the parts, which will change the grain structure arrangement on the surface of the parts, forming a dense layer and achieving a shiny surface effect.
  • 8. What is the best stainless steel media?
  • The best stainless steel media should look like this:
    Fully self-grinding, the curved surface is round and smooth, and the cut surface is neat and straight.
    The specifications and sizes are uniform and the dimensional tolerances are reasonable.
    The material matches the stainless code and the anti-rust performance meets the standard.
    If you don’t know where there is the best stainless steel media, please follow our ShineTec related products. We are committed to becoming the best brand in the stainless steel media industry.

    shapes of stainless steel media
  • 9. Which finishing and polishing machine is suitable forv stainless steel media?
  • ShineTec recommends using a vibratory polishing machine with stainless steel media for polishing. The reasons are as follows:

    9.1 To achieve a good polishing effect with stainless steel media, the product parts need to be put into as much tumbling media as possible. The vibratory finishing machine can be equipped with a high-power vibration motor and a large-capacity working chamber to obtain a larger amplitude, allowing the workpiece to fully tumble in the machine and collide with the abrasive media to obtain a better surface effect.

    9.2 Because the size of the centrifugal barrel is limited, the centrifugal barrel finishing machine has a small loading capacity of tumbling media and is not very efficient. Moreover, due to the large proportion of stainless steel media, the centrifugal force generated when the barrel is loaded with abrasive media and rotates at high speed will increase many times, which greatly exceeds the design strength of the centrifugal barrel finishing machine and creates potential safety risks.

    9.3 The barrel of the centrifugal disc finishing machine also does not meet the capacity requirements compared to the vibrating finishing machine. If it is operated at full load, it will greatly exceed the design strength of the machine, and it is not suitable to use stainless steel media to polish product parts.

    9.4 The polishing efficiency of the tumbling barrel finishing machine is too slow, and the design capability of the machine itself is not suitable for heavy-duty use, and it is not suitable for polishing with stainless steel media.

    vibratory polishing of stainless steel media
  • 10. What are the benefits of polishing with stainless steel media?
  • If you don’t know how to improve the surface gloss and brightness of metal product parts and workpieces, then using stainless steel media for tumbling and polishing is the best polishing process and method.

    10.1 High polishing efficiency. Compared with polishing media such as high-alumina porcelain media, high-density porcelain media, and zirconia balls, stainless steel media have the highest specific density (7.8 g/cm3) and can obtain the highest brightness in the shortest time.

    10.2 High cleaning efficiency. Stainless steel media have very little wear and do not pollute the surface structure of metal product parts. With the assistance of cleaning agents and brighteners, they can fully clean away oil, sludge, and impurities on the surface of workpieces automatically, in large quantities, quickly, and solve the problem of manual cleaning. Time-consuming and labor-intensive problem.

    10.3 Non-destructive polishing. 不Stainless steel media have no cutting force, will not finish the surface with great force, and will not affect the dimensional accuracy of the product. It is a non-destructive polishing process.

    10.4 Extra long service life. Stainless steel media have almost no wear, and a single purchase can last almost a lifetime. There is almost no wear cost, which can greatly reduce your direct polishing costs.

    10.5 Easy to use. Ceramic polishing media will stick to each other, break, and become dirty after use. They need to be fully self-polished and cleaned before they can be used again. There are no breakage or bonding issues with the stainless steel media. After polishing, you only need to simply rinse it with water and it can be used continuously again.
  • 11. Do stainless steel media require maintenance for daily use?
  • Good maintenance habits can extend the service life of stainless steel media. Although stainless steel media is an tumbling polishing media that is easy to use and store, its service life will be accelerated if not properly maintained.

    11.1 Correct usage. After polishing, if it is not used for a long time, you need to rinse the stainless steel media with water and dry it before storing it.

    11.2 Proper mixing ratio of stainless steel media, product parts and polishing liquid. A corresponding ratio needs to be maintained among the above three. In order to save procurement costs, many people want to use as little stainless steel media as possible and put more product workpieces. However, too little abrasives will cause the product parts to collide with each other during polishing or the workpieces to directly scratch the working chamber wall of the machine and damage the lining PU. This results in reduced polishing efficiency, reduced polishing quality and possible damage to product parts and machines.

    11.3 Replacement of damaged stainless steel media. Ensure that every one of stainless steel media in the machine is intact. If some of the media are deformed or damaged, the damaged media must be replaced immediately. The damaged media surface will produce cracks, edges, and cutting edges. These parts will affect the surface effect of product parts during polishing, and even damage the product.

  • 12. In which industries can stainless steel media be used for product parts and workpieces?
  • Stainless steel abrasives can be used for finishing and polishing metal parts or workpieces in most industries.

    12.1 Professional finishing and polishing processing job shop. Stainless steel media are the most cost-effective tumbling media in the polishing process of polishing job shop. There is no wear on the abrasive, and only a small amount of chemical polishing liquid needs to be added for each processing to complete the polishing process. This abrasive media is available in many polishing processing job shop.

    12.2 Jewelry industry. After long-term storage or use, the surface of jewelry will produce an oxide layer, which will darken and turn black. Polishing with stainless steel media can restore jewelry to its original luster.

    12.3 Auto parts industry. The auto parts industry is an area where stainless steel media are widely used. Includes deburring and polishing applications. Such as engine cylinder heads, pistons, motorcycle wheels, mufflers, fasteners, gears and other products. It also has a good polishing effect on the refurbishing of some forged or cast auto parts.

    12.4 Aerospace and defense fields. The strength and reliability of product parts in the aerospace and defense fields are the most critical indicators. The impact of stainless steel media during the polishing process can increase the strength of the product surface and produce a uniform surface polishing effect.

    12.5 Medical equipment and devices. Product parts for the medical device and device industry must be guaranteed to be zero-defect. After metal parts are polished with stainless steel media, the strength and surface quality of the product will be improved. For example, titanium, chromium, stainless steel, cobalt and other materials and their alloy products are very suitable for polishing and brightening with stainless steel media.

    12.6 Motorcycle Accessories. Motorcycle accessories require high-quality products and glossy product surface quality. Using stainless steel media for polishing can quickly achieve satisfactory polishing results.
  • 13. What are the benefits of using stainless steel media for tumbling polishing?
  • 13.1 Improve the wear resistance of parts. Stainless steel media can remove components from the microstructure that affect the corrosion resistance of product parts. It can completely remove the oxide layer on the surface, eliminate cracks and other defects on the surface of parts that are easily affected by oxidation, and improve the overall corrosion resistance.

    13.2 Improves strain hardening of parts. After tumbling finishing and polishing with stainless steel media, the surface hardness of the parts can be increased. Compared with unpolished parts, the surface hardness can be increased by 50-100%.

    13.3 Brightening and burnishing effect. Stainless steel media can not only improve the strength of parts, but also improve the brightness and gloss of the product surface. After the fine polishing process, it can achieve an effect close to mirror polishing.

  • 14. How long is the service life of stainless steel media?
  • If you take appropriate daily maintenance measures, you can use it for a long time. Of course, poor usage habits will definitely reduce the use time of stainless steel media. In comparison, compared to porcelain polishing media, its service life is far longer than other abrasive media.
  • 15. Can brass parts be polished with stainless steel media?
  • Yes, brass parts can be polished with stainless steel media.
  • 16. Can nickel-plated metal parts be polished with stainless steel media?
  • Yes, stainless steel media can be used to polish nickel plated metal parts. However, the polishing time needs to be shortened to 40-60% of the ordinary polishing time.
  • 17. Can stainless steel media be used for dry and wet finishing?
  • Stainless steel media cannot be used for dry polishing. During the polishing process of product parts, metal shavings, oil stains and other impurities will be produced. If these sludge is not cleaned during the finishing process, it will adhere to the surface of the product to form a layer of oil stains, making the parts black and dull. The result is that the workpiece will become darker. The darker you throw it, the brighter it will never be.
  • 18. Do stainless steel media need to be dried when stored?
  • If you need to store it for a long period of time, such as months or years, you need to let the stainless steel media dry before packaging and storage. If it is for a short period of time, it is not necessary because stainless steel itself is rust-proof and anti-corrosion.
  • 19. Will stainless steel media damage my parts?
  • As long as the proper matching ratio of media, water, and polishing liquid is maintained during the polishing process, and the size of the media matches the size of the parts, there will be no damage.
  • 20. Do stainless steel media require special lubrication?
  • Unnecessary. When polishing with stainless steel media, you only need to add clean water and an appropriate amount of polishing liquid. There is no need to add external lubricating grease and other substances.
  • 21. Are stainless steel media magnetic?
  • Yes, stainless steel media are weakly magnetic. You can use this feature to use magnets to collect media scattered on the floor around the machine during the polishing process.
  • 22. What are the proportions of media, parts, and water when polishing with stainless steel media?
  • Generally we recommend this matching rate:

    Media : Parts : Water = 3 : 1 : 2

  • 23. Where should stainless steel media be placed when stored?
  • Please place stainless steel media in a dry, clean indoor space. Although stainless steel media themselves are anti-corrosive and anti-rust, low-grade materials will also rust if they are exposed to humid, acidic and alkaline environments for a long time.
  • 24. How long does it usually take to polish with stainless steel media?
  • It usually takes about 30 minutes to polish with stainless steel media. If the surface brightness does not improve significantly after more than 1 hour, extending the polishing time will have no effect.
  • 25. Can jewelry be polished with stainless steel media?
  • Yes, jewelry can be polished with stainless steel media.
  • 26. Why does the surface of the part become darker and lose its luster after being polished with stainless steel media?
  • When polishing with stainless steel media, it is found that the surface of the part becomes black and dark because the oil on the surface of the media or the carbon in the impurities is deposited on the surface of the product. The solution is to clean the stainless steel media with cleaning liquid before polishing.
  • 27. Which stainless steel media should I buy?
  • 27.1 Choose the appropriate stainless steel media according to the shape and size of your product parts and workpieces. Please do not use large-sized media to polish small-sized parts to avoid damage. If you use small-sized media to polish large-sized parts, it will take more man-hours and have a big impact on the service life of the media.

    27.2 Make sure that the internal and external surfaces of your parts, as well as holes, gaps, corners, etc., can be polished with stainless steel media.

    27.3 According to the actual usage environment of your product. If your use environment contains acid and alkaline substances, you need to choose high-grade stainless steel media. The following is the corrosion resistance of various grades of stainless steel media:

    440C < 420 < 302 < 304 < 316
  • 28. Why do my product parts turn black after being polished with stainless steel media?
  • The main reason is that the stainless steel media needs to be pre-cleaned before polishing. If there are some residual brighteners, sludge, debris and other impurities attached to the media surface after the last polishing, polishing again will contaminate your product parts with these impurities, causing the product surface to turn black.
  • 29. Do stainless steel media need to be cleaned before each use?
  • We recommend cleaning stainless steel media once before use. This ensures that the surface of the part will not turn black or dull during the polishing process.
  • 30. How much stainless steel media is required to complete a polishing process?
  • Depending on the machine capacity used. It is recommended that the total volume of materials does not exceed 2/3 of the working chamber.
    The general ratio of parts to media is 1:3, and this ratio can also be adjusted according to the shape and size of the workpiece.

  • 31. What is the best machine for polishing with stainless steel media?
  • We recommend using a vibratory polishing machine to polish with stainless steel media. The advantages are: easy to load and unload, you can check the polishing effect at any time, large loading capacity, and simple to use.
  • 32. Do stainless steel media need rust inhibitors?
  • Unnecessary. Because stainless steel media are made of anti-corrosion and anti-rust stainless steel materials, there is no need to add additional anti-rust liquid.
  • 33. Can other types of finishing machines be polished with stainless steel media?
  • Centrifugal disc finishing machines, centrifugal barrel finishing machines, and barrel tumbling finishing machines can all use stainless steel media for polishing. It’s just that other machines need to reduce the loading of media when polishing. Generally, the amount of media is reduced by half compared to using porcelain polishing media.
    tumbling polishing, brightening with stainless steel media
  • 34. Is polishing with stainless steel media faster than using other polishing media?
  • Yes, because the density of stainless steel media exceeds that of porcelain polishing media, it is easier to obtain a bright surface effect in a shorter time.
  • 35. Can plastic parts and workpieces be polished with stainless steel media?
  • No. The material of plastic products is not suitable for deburring and polishing with stainless steel media. You can use ceramic deburring media or resin media to remove burrs, and use brightening media to polish the brightness.
  • 36. What is the price of stainless steel media?
  • The price of stainless steel media varies according to grade, shape, and size. The larger the size, the lower the price. Of course, its price will be much higher than tumbling media such as brown corundum ceramic media, white corundum ceramic media, and silicon carbide ceramic media. However, in terms of service life, the cost of using stainless steel media is far lower than that of other abrasive media. Maybe you are concerned about where to find the cheapest stainless steel media, please contact us now, ShineTec will give you a satisfactory offer.
What’s the polishing media?

About Polishing Media

  • 1. What’s the polishing media?
  • polishing media, also called polishing chip, polishing stone, and vibratory polishing media. Compared with ceramic deburring media, polishing media are a kind of abrasive media that does not contain abrasive sand with finishing function. Its main function is to improve the gloss and brightness of the surface of product parts. Its operating principle is to use its own pressure with high density to hit the surface of the product during the tumbling, rolling, throwing and rotating processes, changing the grain structure of the surface of the workpiece to form a dense layer, thereby achieving a shiny decorative effect on the surface.
    ShineTec's porcelain media
  • 2. What are the polishing media?
  • Polishing media are classified according to materials into porcelain media, stainless steel media, and bio-degradable polishing media.

    2.1 Porcelain media. Porcelain media are artificially made mass abrasives with various shapes, shaped like stones, so they are also called polishing stones. There are high-alumina porcelain media, high-density porcelain media, and zirconium bead polishing media.
    The main component of high-alumina porcelain media is alumina. Its appearance and internal physical properties are similar to those of porcelain bowls used for eating at home. They are generally white, hard in texture, and have a specific density of up to 2.6 g/cm3, and the ceramic media for deburring has a specific density of about 2.3 g/cm3. There is a significant difference in weight between the two.
    The material of high-density porcelain media is actually the same as that of high-alumina porcelain media, except that the proportion of alumina power contained in it is higher, up to more than 95%, so the specific density is larger than that of high-alumina porcelain media, up to 2.9 g/cm3, the surface of the polished workpiece is brighter than that of high alumina porcelain.
    Zirconium polishing bead use zirconia powder or zirconium silicate powder instead of alumina powder. The main shape is spherical ball. Due to different materials, they are generally called zirconia beads, zirconia balls or zirconium silicate beads, zirconium silicate balls. The density can reach 6.0 g/cm3 and 4.0 g/cm3 respectively, which shows that the surface brightness of the polished workpiece product is even higher.

    2.2 Stainless steel polishing media. Mainly produced from stainless steel, the materials are divided into 201, 304, 316, 316L, 402, etc., and are used in environments with different anti-corrosion requirements. It is required that the polished workpiece be a metal product, and non-metallic workpieces will have no effect. The shapes include spherical, ballcone, ufo, pins, angle cut cylinder, etc. Because the shape has sharp corners or edges, it can touch holes, seams, corners and other parts of product parts to achieve polishing of the internal and external surfaces.

    2.3 bio-degradable polishing media. It uses the crude fibers of animal and plant materials and the oil contained in them to polish, imitating the cloth wheel and adding polishing paste for polishing, which can achieve a mirror polishing effect. At present, the most widely used materials include corn cobs, walnut shells, wood pellets, bamboo chips, sawdust, shredded felt, shredded leather and other materials. This kind of mirror polishing method generally uses a barrel (tumbler) polishing machine to dry polish without adding water. The workpiece after initial polishing or fine polishing is put into the barrel together with the biological polishing media, and an appropriate amount of polishing paste is added. It may take more than ten hours, and the final result will be sparkling, close to the mirror polishing effect of a handmade cloth wheel.

    ballcone/ufo stainless steel polishing media
    zirconia ball polishing media
  • 3. How to choose the appropriate polishing media?
  • 3.1 Depending on the material of the product parts that need to be polished. The harder the workpiece itself is, the higher the hardness of the polishing media required. In layman’s terms, only head-on confrontation will produce results. The harder the polishing media, the better the polishing effect. The following is the order of hardness of various polishing media:
    High alumina porcelain media < High density porcelain media ＜ Zirconium silicate ball polishing media ＜ Zirconia ball polishing media ＜ Stainless steel polishing media.
    3.2 According to the shape of the polishing media. The following is a comparison of the polishing effects of different shapes of polishing media: spherical > oval > cylindrical > triangular.

    3.3 Some metal workpieces or non-metallic parts require a barrel polishing process, so bio-degradable polishing media must be selected.

  • 4. Is polishing media expensive?
  • The price of polishing media is much higher than the price of deburring ceramic media for rough or fine finishing. The price generally ranges from more than five dollars to tens of dollar per kilogram, but its wear resistance is several times higher than that of deburring media. Like stainless steel polishing media, it can be said that there is basically no wear and tear. You can buy it once and use it for life. Therefore, in terms of unit wear cost, the use cost of polishing media is low.
  • 5. What is the service life of the polishing porcelain media?
  • The higher the hardness of polishing media, the stronger the wear resistance. Generally speaking, the service life of polishing media is at least one year. The polishing media produced by ShineTec are durable abrasives that have been fired through dozens of sample tests using exclusive process formulas. After wear resistance testing, the wear resistance of our polishing media is comparable to the performance of world-renowned manufacturers such as German Roesler and Japanese manufacturer Tipton. If you don’t know where to find the best polishing media, you can take a closer look at our ShineTec products.
  • 6. Is it necessary to add polishing compounds when using polishing media?
  • Polishing compound is a product that does not contain sulfur, phosphorus, or chlorine additives Water-soluble polishing liquid, also called polishing liquid, brighteners, have good degreasing, rust-proof, cleaning and gloss-enhancing properties, and can make metal products show true metallic luster. It has the advantages of stable performance, non-toxicity and no pollution to the environment. Adding an appropriate amount of polishing compound during polishing can improve the polishing efficiency and effect. It has a significant effect on the surface polishing of stainless steel, aluminum alloy, copper and other products, so it must be added.

    6.1 Softening effect. Polishing compound can soften the oxide film on the surface of metal products and is easily removed by polishing media to accelerate polishing.

    6.2 Lubricating effect. Polishing compound can provide lubrication. It acts as a lubrication between polishing media and metal parts to reduce scratches on the surface of the workpiece caused by impurity particles.

    6.3 Cleansing effect. Polishing compound can clean the oil stains on the surface of the workpiece and restore the original luster of the metal.

    6.4 Buffering effect. The tumbling motion of polishing compound and water in the polishing machine can buffer the collision between workpieces and polishing media and protect the workpiece.

    6.5 Anti-rust and anti-corrosion effect. Parts treated with polishing compound can have anti-rust and anti-corrosion effects in a short period of time. Of course, the best anti-rust measure is to treat it with anti-rust agent and then dry it.

  • 7. What are the functions of different types of polishing media?
  • Usually, hard polishing media are used when polishing metal parts, such as high-alumina porcelain media, high-density porcelain media, zirconium balls, stainless steel and other abrasives. Marble polishing should choose high-alumina porcelain polishing media. It is best to choose zirconium ball polishing media for metal mold polishing. Soft parts such as plastics are polished using a mixture of bio-degradable media and hard media.
  • 8. What effect does the shape, size and angle of polishing media have on the polishing effect?
  • The smoother the surface of the polishing media, the better the polishing effect on the parts. Therefore, when polishing, choose spherical polishing media as much as possible. The size of the media should be smaller than 1/3 of the inner hole of the part, but not too small to prevent the hole from being blocked by the media.
    Some parts with edges, folds, steps, etc. can be mixed with spherical polishing media and polishing media with sharp corners or edges, so that parts that cannot be touched by balls can be polished.
    Polishing media exceeding 80mm will not have very good brightness after polishing, so the size of the polishing media selected is generally below 80mm.

    polishing media selection
  • 9. What is the difference between the polishing effects of natural polishing abrasives and polishing media?
  • Natural polishing media refer to abrasives obtained directly from nature without artificial processing, such as quartz sand, pebbles, garnets, etc. Because of their size and materials, their application range is very narrow, and it is difficult to obtain a satisfactory surface effect when polishing. Artificial polishing media are customized according to the shape and material of the parts. The products are rich in variety and specifications, and can quickly obtain satisfactory surface quality.
What is the ceramic media?

About Ceramic Media

  • 1. What is the ceramic media?
  • Ceramic media is used for tumbling finishing and polishing of product parts and workpieces, also called tumbler media, vibratory media, tumbling chip. It is a melting reaction between sand powder abrasives (such as brown corundum abrasive sand, white corundum abrasive sand, chrome corundum abrasive sand, silicon carbide abrasive sand, alumina powder, zirconia powder, etc.) and other ceramic bonding agents at high temperatures, artificially sintered mass finishing and polishing materials with various shapes. Because its hardness is close to that of stone, it is called tumbling stone. It can repair defects on the product surface, improve surface physical properties, and has a variety of finishing or polishing uses.
    ceramic media producing-cutting&shaping
    ceramic media producing-sintering
  • 2. What types of ceramic media are there?
  • There are many types of ceramic media, each suitable for different surface treatment purposes.
    Depending on the type of sintered abrasive sand powder, the commonly used ones are ceramic deburring media, silicon carbide deburring media, White corundum finishing media, chrome corundum finishing media, porcelain polishing media, High density porcelain media, zirconia polishing ball, Resin media.
    According to the use effect, there are rough finishing media, fine finishing media and polishing media. Both rough and fine finishing media have cutting force, but the cutting force is divided into light and heavy. The polishing media does not have cutting force and is only used to improve the surface gloss and brightness of the workpiece.
    According to the material, there are ceramic media and resin media. Among them, ceramic media are the collective name for deburring media such as brown corundum, silicon carbide, white corundum, chrome corundum, high-aluminum porcelain, high-density porcelain, and zirconia abrasive media.

    angle cut cylinder porcelain media
    cone resin media
  • 3. What is the use of ceramic media?
  • The operating principle of the ceramic media is to mix the workpiece or part with the tumbling media, add an appropriate amount of water and finishing compound, and load it into tumbling finishing machine In the working barrel, mechanical movements such as tumbling and rotation are carried out through vibratory (vibration), centrifugal disc, barrel, and tumbling barrel, so that the ceramic media and the workpiece impact and rub against each other, finishing the surface to achieve the effect of deburring and polishing.
    The role of ceramic media is reflected in two aspects:
    The ceramic media with cutting force can perform functions such as deburring, descaling, deflashing, chamfering, derusting, degreasing, cleaning and smoothing of parts and workpieces.
    The ceramic media without cutting force improves the density of the skin layer by impacting the product surface, and can polish and brighten the surface of parts and workpieces.

    heavy cutting ceramic media
    porcelain polishing media
  • 4. How long is the service life of the ceramic media?
  • The service life of a ceramic media can usually be from a few months to a few years, depending on the hardness, shape, and size of the finishing workpiece. Workpieces with sharp burrs and edges, sharp edges, flash edges, higher hardness and larger appearance will cause greater loss to the media. The service life is shorter.
    Of course the most basic factor depends on the quality of the ceramic media. High-quality tumbling media will enhance wear resistance while ensuring finishing efficiency. ShineTec’s ceramic media is a mature and stable formula formed on the basis of dozens of process tests. Corundum sand and ceramic bonding agent have the strongest matching performance, and the wear resistance of the product is longer than other products on the market in terms of service life. There is a 3 times improvement.
  • 5. What are the different functions of ceramic media made of different materials?
  • 5.1 Brown corundum deburring media is suitable for finishing and cutting product workpieces made of general metal or non-metal materials such as burrs, oxide scales, flash edges, turning tool marks, cutting edges, mold closing lines, etc.

    5.2 Silicon carbide deburring media are suitable for finishing and cutting hard, highly brittle and low-strength materials, such as cast iron, brass, bronze, zinc, tin and other products, especially magnetic materials such as rubidium iron boron, with very good results.

    5.3 White corundum and chrome corundum deburring media are suitable for finishing and cutting some precision parts and components because of their fine grit size. Also, because of their low surface roughness after treatment, they also form a very bright surface effect, so It is often used to finish and polish these products in one process at the same time.

    5.4 High alumina porcelain polishing media do not contain abrasive sand inside, so they have no deburring effect. The main component is alumina powder. The abrasive has high density. When it moves with the workpiece, it has a strong impact on the surface of the workpiece, forming a thick surface dense layer, which can improve the surface gloss and brightness of the part.

    5.5 The function of high-density porcelain polishing media is the same as that of high-alumina porcelain media. The difference is that the content of alumina powder in high-density porcelain media is higher, and its alumina content can reach more than 95%. Therefore, the density is larger, forming the surface brightness is higher.

    5.6 There is no abrasive sand inside the zirconia polishing ball. The main component is zirconia powder. The density of the zirconia media is higher than that of high-density porcelain media. The surface brightness of the workpiece after natural treatment is the highest.

    5.7 Resin media contain abrasive sand inside. Depending on the grit size of the sand, they can be divided into heavy cutting, medium cutting, and light cutting. They are suitable for finishing some soft metal workpieces, such as aluminum alloy products.

  • 6. What is the finishing efficiency of the ceramic media?
  • The finishing efficiency of the ceramic media depends on the grit size of the abrasive sand contained in it and the type of deburring and finishing machine. Specifically in terms of finishing time, the time required for a single finishing treatment can range from a few minutes to a few hours.
    The larger the grit size of the abrasive sand, the stronger the cutting force and the higher the finishing efficiency. But the larger the grit size, the greater the surface roughness and therefore the worse the surface finish.
    Depending on the operation mode and speed of the tumbling finishing machine, the finishing efficiency can be arranged in the following order:
    centrifugal disc finishing machine > centrifugal barrel finishing machine > vibratory finishing machine > tumbling barrel finishing machine。
    In addition, for the same type of machine, the larger the machine, the larger the volume of the working barrel, and the higher the finishing efficiency.

    ShineTec fully automatic polishing machine for hardware
  • 7. Does the shape and size of the ceramic media affect its finishing performance?
  • The shape and size of the ceramic media are key factors affecting finishing performance. The purpose of making the ceramic media into shapes such as triangles, cubes, spheres, cylinders, and three-star shapes is to make certain sharp corners, cut surfaces, and curved surfaces of the ceramic media better match the irregular and complex shapes of product parts, so that some parts that are difficult to reach can be parts can also be polished. If the selection of the ceramic media is incorrect, some parts will never be polished, which will definitely affect the finishing performance.
    The size of the ceramic media is also an important factor to consider. If the size is too large, it will also cause the inner holes, dead corners, gaps and other parts of the workpiece to be unable to be polished. If the size is too small, on the one hand, it will cause the abrasive to wear too fast, and on the other hand, it will block certain holes in the product, and may even result in defective products.

  • 8. What are the benefits of finishing and polishing with ceramic media?
  • Are you still looking for manual polishing methods? Let us recommend to you this large-volume, high-efficiency automatic finishing and polishing process. Its comparative advantages over manual finishing methods are as follows:

    8.1 Compared with manual finishing and deburring, the efficiency can be improved dozens of times. Using some large-scale tumbling finishing machines, ceramic media mixed workpieces can feed hundreds or even thousands of kilograms at a time, and can be completed within dozens of minutes or hours. This processing efficiency is incomparable to manual polishing.

    8.2 The surface effect after finishing is uniform and controllable. The quality of hand polishing depends on the personal skill proficiency of the worker. Some products may have burrs polished cleanly, while others may still have some residue. The surface quality of each product is different. Sometimes it may also cause product damage, resulting in a relatively high scrap rate.

    8.3 The running costs of tumbling finishing are extremely low. The one-time purchase cost of the machine starts from a few thousand dollars, and it can generally be used for many years. The choice of ordinary ceramic media depends on the actual conditions of the product parts that need to be processed, and the price ranges from a few dollars to more than ten dollars per kilogram. Buying a few hundred kilograms at a time can usually take several months. The amount of polishing compound is very small and the cost is almost negligible.
    Ordinary finishing machines can feed dozens of kilograms of workpieces at a time, and the finishing time for a batch is generally 30-60 minutes. The direct cost of finishing and polishing when evenly distributed to each product is minimal.
    On the other hand, in terms of saving labor costs, the advantage of using ceramic media for batch deburring and polishing is even greater. As long as workers need to handle it when loading and unloading materials, the machine can be operated unattended, which greatly saves labor costs.

    8.4 By customizing ceramic media with special shapes and sizes, they can be used to process some deburring and polishing areas that cannot be completed by manual finishing. They have powerful functions and wide applicability.

    8.5 It is a safe and environmentally friendly deburring and polishing process. Compared with processes such as chemical polishing and electrolytic polishing, the sludge produced by ceramic media can be directly treated as solid waste after filter press, which is environmentally friendly.
  • 9. Can the ceramic media be used for dry finishing?
  • Not allowed.

    The water and finishing compound during the polishing process can provide lubrication. Buffer the impact force generated by the workpiece and ceramic media during high-speed movement. Without the lubrication and buffering effects of water and finishing liquid, the debris and impurities shed during the finishing process will scratch the surface of the workpiece and leave pits on the surface.

    At the same time, these metal or non-metal debris and impurities will accelerate the wear of the PU lining in the working barrel, greatly increase the temperature rise generated during work, and greatly reduce the service life of the PU.
    If the dust generated during the grinding process is not moistened with water, it will produce dust and pollute the surrounding air and environment.
  • 10. What kind of ceramic media is the best quality?
  • If you don’t know where to find the best ceramic media, here are some tips to help you decide:

    10.1 The shape of the ceramic media. The forming process in the production process of ceramic media is a link that reflects the manufacturing process level of the manufacturer. Good quality control capabilities determine that the ceramic media’s mixing, mud refining, shaping, cutting, and sintering processes all have qualified quality control capabilities. The ceramic media produced in this way have uniform shapes, consistent sizes, smooth surfaces, and sharp corners, these performance indicators ensure that cracks, mud occur rarely.

    10.2 The hardness of the ceramic media. This indicator reflects the sintering temperature control level of the kiln. If the kiln temperature is too low, the melting reaction of various micro-powders inside the ceramic media is insufficient, the tumbling media is too tender, the hardness is not up to standard, and the wear is very high during use. If the kiln temperature is too high, it will cause over-burning. Corundum sand on the surface of the ceramic media will precipitate, resulting in a porridge-like surface and the product will be scrapped.

    10.3 Durablity of ceramic media. Excellent product raw material quality, strict production process control, and just the right formula combination can produce high-quality ceramic media. The wear resistance of ShineTec’s tumbling media can reach about 3 times that of other manufacturers on the market. You can compare the use cost, which can reduce the direct cost of your product finishing and polishing process by 3 times.

    high quality ceramic media
  • 11. How to choose a suitable ceramic media?
  • 11.1 Choose the material of your ceramic media based on the effect you want to achieve. If you want to deburr, descale, deflash, derust, chamfer and other finishing effects on your product parts, then you should choose ceramic deburring media, silicon carbide deburring media, white Corundum finishing media and chrome corundum finishing media are abrasives with cutting force. If you just want to improve the surface brightness of your product, you need to choose polishing porcelain media, high-density porcelain media, and zirconia polishing bead, which are non-cutting and high-density tumbling ceramic media. If your product is made of soft metals such as aluminum alloy, copper, and zinc, you need to choose a resin media.

    11.2 Choose the appropriate ceramic media based on the size and surface condition of your product. If your product does not have holes, or cracks, then choose a larger deburring media so that it has a long service life and will not produce stuck holes or clogging even after its shape becomes smaller.

    11.3 Choose the appropriate ceramic media based on surface roughness. For rough products, choose a tumbling media with strong cutting force and sharp product corners. For precision parts, choose a abrasive media with fine abrasive grit and low cutting force.

What is the finishing media?

About Finishing Media

  • 1. What is the finishing media?
  • All materials that are naturally produced or artificially produced and have high hardness, cutting ability and certain strength and toughness, and are used for grinding, finishing or polishing, can be finishing media, abrasive media. Finishing media are a diverse category, and many people have questions of one kind or another, such as: What are finishing media? What are the commonly used finishing media? What are finishing media used for? What are the types of finishing media? Let’s talk about these issues in detail below.
    natural abrasives
  • 2. What are the types and uses of commonly used finishing media?
  • According to the source, abrasives can be divided into two categories: natural abrasive media and artificial finishing media.

    2.1 Natural abrasive media include diamond, natural corundum (also called emery), garnet, quartz sand, diatomaceous earth, pumice, flint, silica, feldspar, chalk, lime for polishing, etc.

    2.1.1 Diamond. Diamond is the hardest substance currently known. The main ingredient is carbon, which is expensive because of its limited origin. Mainly used for manufacturing resin, ceramic or metal bonded abrasive tools. Diamond has a sharp shape and is the best abrasive tool for grinding hard and brittle materials such as cemented carbide, optical glass, and ceramics. It has a better polishing effect on alloys of different phases with huge differences in soft and hard. In addition, diamond polishing abrasive media have the characteristics of long finishing life, high cutting ability, and strong wear resistance. However, because it is easily carbonized at 700℃~800℃, it is not suitable for finishing steel materials and ultra-high-speed grinding.

    2.1.2 The main components of emery are aluminum oxide (Al2O3), a small amount of iron oxide (Fe2O3) and other impurities. It can be used for finishing and polishing all metals.

    2.1.3 Garnet is the oldest type of polishing abrasive media. It was called Ziyawu in ancient China. It has been used to grind gemstones since the Bronze Age. It gets its name because the crystal particles are shaped like pomegranate seeds. It is mostly used for sandblasting, waterjet cutting, manufacturing coated abrasive tools, filter materials, wear-resistant floor aggregates, etc. It is used in hardware, steel, castings, ceramics, aluminum, wood, and leather industries.

    2.1.4 The main component of quartz sand is SiO2, which is the earliest grinding wheel material and can be used for grinding, polishing, tumbling and sandblasting. The main component of diatomite is also SiO2, which is an ingredient in the manufacture of polishing powder and whetstone. Suitable for finishing and polishing soft metals such as brass, aluminum, and zinc.

    2.1.5 Pumice comes from volcanoes and is the raw material for making polishing powder. Suitable for finishing and polishing soft metals and their alloys, wood, glass, plastic, leather, etc.

    2.1.6 Flint, is a relatively common siliceous rock. Because flint is hard and produces sharp fractures when broken, it was first favored by primitive people in the Stone Age and used to strike and make stone tools. The striking of flint and iron tools will produce sparks, so it was also used as a fire-making tool by ancient people. In ancient China, a small piece of flint and a steel “fire sickle” were often struck to make fire, so flint is also called flint. The modern grinding industry utilizes its hard and sharp edges as grinding materials.

    2.1.7 Silica is the general name for vein quartz, quartzite, and quartz sandstone. The main component is also SiO2. Silica has a wide range of uses. When used in the grinding industry, it can be used to make grinding stones, oil stones, and sandpaper. It can also be used to polish glass, Surface of metal products, sawing and grinding stones, polishing jewelry, etc.

    2.1.8 Feldspar is the general name for feldspar minerals. There are many types, such as albite, anorthite, barium feldspar, barium adolite, microcline feldspar, orthoclase, feldspar, etc. The main component is feldspar. Silicon oxide, aluminum oxide, K2O, sodium oxide, calcium oxide, etc. When used in the grinding industry, it is often used as a bond component in the production of bonded abrasive tools, such as grinding wheels.

    2.1.9 Chalk is calcium carbonate and has a wide range of uses. It is used in the grinding industry as a raw material for tooth powder, toothpaste and other cosmetics.


    2.2 Artificial abrasive media. It is an abrasive material that does not exist in nature and is entirely artificially produced. The main types are:

    2.2.1 Sintered abrasives. Mainly divided into corundum abrasive media, silicon carbide abrasive media and CBN (cubic boron nitride) abrasive media, the varieties are divided into:

    Brown corundum abrasive media. The main component is Al2O3, which has medium hardness, high toughness, sharp particles, relatively low price, and is suitable for processing metals with high tensile strength.

    White corundum abrasive media. Its hardness is slightly higher than brown corundum, but its toughness is poor. It is easy to cut into the workpiece during finishing. It has good self-sharpening, low heat generation, strong finishing ability and high efficiency. Chrome corundum abrasive media is its derivative.

    Single crystal corundum abrasive media. Its particles are composed of a single crystal and have good multi-edge cutting edges, high hardness and toughness, strong grinding ability, and low grinding heat. The disadvantage is that the production cost is high and the output is low, so the price is relatively high.

    Silicon carbide abrasive media. Divided into black silicon carbide abrasives, green silicon carbide abrasives, cubic silicon carbide abrasives, and cerium silicon carbide abrasives. The main component is SiC, which has high hardness, high brittleness, sharp abrasive grains, good thermal conductivity, and strong wear resistance. It is more suitable for processing hard and brittle metal and non-metallic products. At present, the finishing and cutting of most NdFeB magnetic materials is widely used.

    CBN (cubic boron nitride) abrasive media. It is a synthetic super-hard material, its hardness is second only to diamond, and it is an excellent grinding material. Compared with traditional grinding materials, CBN abrasives have excellent grinding performance, especially when grinding cemented carbide, and are more efficient. CBN abrasive media are known as one of the greatest technological advances in the history of the abrasives industry due to their high strength, high wear resistance, excellent hardness close to diamond, and excellent thermal stability. The wear resistance and hardness are more than four times that of traditional abrasives, and its unique chemical properties also make it particularly suitable for grinding ferrous metal materials.
    The thermal integrity of CBN abrasive media and their ability to maintain a sharp cutting edge when machining ferrous materials makes them the product of choice for advanced grinding systems. When grinding ferrous metals, they do not react with each other; when grinding steel alloys, they are not easily oxidized. This makes CBN abrasive media the first choice for high-performance grinding wheels for grinding different materials such as cast iron and hard steel.
    CBN abrasive media can withstand high temperatures of 1300℃~1400℃, are chemically inert to iron group elements, have good thermal conductivity, have high removal rates when grinding steel, have large grinding ratios, and have long tool life. They are ideal for grinding hardened steel, The best abrasive for metals with high hardness and toughness such as high-speed steel, high-strength steel, stainless steel and heat-resistant alloys. In addition, CBN abrasive tools are also suitable for ultra-high-speed grinding, and metal-based CBN abrasive tools will not break even if the linear speed exceeds 250m/s.


    2.2.2 Preformed finishing media.
    There are two types of such finishing media: One is sintered ceramic media; also known as ceramic deburring or polishing media. Corundum sand or silicon carbide powder, quartz powder, alumina and other materials are melted at a high temperature of more than 1,000 degrees and sintered into a finishing media with very high hardness. The other is abrasives media bonded with resin, called resin media, polyester media or plastic media. This type of abrasives media can be made into triangular, spherical, square, conical, cylindrical and other shapes. Each shape of abrasives media has different sizes.


    2.2.3 Steel finishing media.
    It can be made into hard steel balls, stainless steel balls, ballcone, ufo, needles, pins, angle cut cylinder and other shapes. This type of abrasive media has high strength and is not easily broken. It is mainly used for polishing surface brightness.


    2.2.4 Bio-degradable finishing media.
    Commonly used ones include corn cobs, walnut shells, sawdust, shredded felt, shredded leather, etc. It is mainly used in the tumble polishing process. It is used for the final polishing and drying of parts that have been treated with light finishes, and can achieve an effect close to mirror polishing.

    diamond abrasive media
    Artificial brown corundum abrasive media
  • 3. What is tumbling finishing media?
  • Tumbling finishing mediaalso called tumbling abrasive media and mass finishing media, refer to abrasive media that use tumbling, vibrating, rotating and other motion methods to finishing the surfaces of product parts and workpieces. It can be natural abrasive media such as river sand, stones, and plants, but most of them use artificial abrasives, including abrasive media with cutting force and polishing media without cutting force. This artificial abrasive media comes in a variety of shapes, including tri-angle, ellipses, spheres, cylinders, tri-star shapes and other clumps, so it is also commonly called tumbling media. It can be said that tumbling abrasive media are one category of abrasive media, but because natural abrasive media are rarely used now, tumbling media actually refer to tumbling abrasive media in most cases.
    angle cut tri-angle ceramic tumbling media
    sphere ceramic tumbling media
  • 4. What can tumbling finishing media be used for?
  • Tumbling media can deburr, descale, deflash, chamfer, derust, degrease, clean, polish, brighten on metal and non-metallic parts and workpieces. The advantage of this kind of finishing media is that it can quickly finish products in large quantities, automatically, and has the characteristics of low cost, high efficiency, safety and environmental protection.
  • 5. What are the types of tumbling finishing media?
  • Tumbling media are divided into three types of abrasive media: rough finishing, fine finishing and polishing:

    5.1 Rough finishing media, mainly includes brown corundum ceramic media, resin ( plastic) media, divided into heavy cutting force, medium cutting force and light cutting force.

    5.2 Fine finishing media, includes white corundum ceramic media, chrome corundum ceramic media, 3P abrasive media, etc. Because the grit size of the micropowder contained in it is very fine, some of which are nearly 2000-3000 mesh, it can continuously perform micro-cutting on the surface of the workpiece to form a more delicate surface roughness, which is suitable for finishing and polishing precision parts.

    5.3 Polishing abrasive media include high-alumina porcelain media, high-density porcelain media (high-alumina porcelain media with an alumina content of more than 95%), stainless steel media, walnut shell abrasive media, corn cob abrasive media, etc. The main purpose is to improve the gloss and brightness of the workpiece surface.

  • 6. How does tumbling finishing media work?
  • The shapes of tumbling finishing media include triangles, spheres, cubes, cylinders, three-star shapes, etc. The cutting surfaces are straight and angle to form acute angles at different angles. The specifications are also available in dozens of sizes from 1mm to 60mm, which are suitable for each. Finishing and polishing of internal and external surfaces of product parts with irregular and complex shapes, holes, seams, corners and other parts. The main mode of operation is to put the abrasive media and parts together into the working barrel of the tumbling finishing and polishing machine, and use the vibrating, tumbling, rotating and other mechanical movements generated by the machine to cause the abrasives to rub and cut on the surface of the workpiece to achieve the effect of finishing and polishing.
    ShineTec's Hardware Fully Automatic Polishing Machine
  • 7. How to choose the correct tumbling finishing media?
  • There are several factors to consider when purchasing tumbling media:

    7.1 Cutting force. This indicator determines the speed at which the workpiece is ground. Heavy-cutting abrasive media can finish parts faster but produce a relatively rough surface finish. Conversely, light-cutting abrasive media finish more slowly but produce higher surface quality.

    7.2 Durability. Wear resistance determines the service life of abrasive media. Wear resistance is affected by factors such as the quality of various raw materials, the particle size and content of abrasives, the matching degree of binder and corundum sand, the condition of vacuum during molding, and the control of sintering temperature. This is a key indicator reflecting the quality of abrasives.

    7.3 Hardness. Workpieces with different hardnesses require tumbling media with different hardnesses for finishing. The harder the workpiece, the harder the abrasive media is required to polish it. If high-hardness abrasives are used to polish workpieces made of soft materials, they may cause damage to the workpiece. For example, if aluminum alloy workpieces are ground with brown corundum ceramic deburring media, the surface will be dull, corrosion pits (impacting points) and a deformation disturbing layer will be produced on the surface.

    7.4 Shape and size. Different shapes and sizes of product parts require matching abrasive media of different sizes and shapes. Generally speaking, the larger your workpiece is, the larger the media will be, and the smaller the workpiece will be, the smaller the abrasive will be. Particular attention should be paid to the shape and size of the abrasive media so that it cannot get stuck in the inner holes, pipes, gaps, corners, etc. of your product.
    Every user of abrasive media wants to buy high-quality abrasives with fast grinding time, high surface quality and strong wear resistance. Maybe you are looking for where is the best tumbling abrasive media manufacturer? Please contact us. ShineTec masters the key technologies of abrasive production and manufacturing and can provide you with the most cost-effective abrasive media.
  • 8. What is the best tumbling finishing media?
  • To measure the quality of finishing media, the most critical factors are cutting efficiency and wear resistance. However, in terms of production and manufacturing processes, these two are contradictory indicators. To achieve high cutting efficiency, you need to use large-grained corundum sand. However, the larger the particle size of the sand, the easier it is to fall off from the matrix during finishing, affecting the wear resistance of the abrasive and causing high wear. Here it is necessary to master the bonding strength between the sand grains and the binder, find a balance point, and maximize the cutting force of corundum sand while enhancing the bonding strength with the matrix. It requires both high cutting force and strong wear resistance. This is the core technology that produces the best tumbling media.
    tumbling finishing media
  • 9. How long is the service life of tumbling finishing media?
  • The service life of tumbler media typically ranges from several months to several years, depending on the hardness, shape, and size of the workpiece being ground. Workpieces with sharp burrs and edges, sharp edges, flash edges, higher hardness and larger appearance will cause greater loss to the abrasive. The service life is shorter.
    Of course the most basic factor depends on the quality of the tumbler media. Good abrasive media will enhance wear resistance while ensuring grinding efficiency. ShineTec’s tumbler media are mature and stable formulas formed on the basis of dozens of process formula tests. Corundum sand has the best material match with other binders, and the wear resistance of the products is longer than other products on the market in terms of service life. There is a 3 times improvement.
  • 10. How to calculate the volume matching ratio between finishing media and workpiece?
  • What is the most appropriate loading ratio of tumbler media to workpiece during primary finishing and polishing? This ratio depends on the finishing effect you want to achieve. Factors that need to be considered include the material, size, shape of the abrasive media, the material and weight of the workpiece.
    Below is a basic tumbler media : parts ratio guide, please refer to the table below to determine your usage:

    Tumbler Media to Workpiece Volume Ratio Typical Application
    0 : 1 no abrasive media, and the product is self-finishing and polishing, such as some decorative stones for handicrafts.
    1 : 1 Same proportion of tumbler media and products with very rough surface, such as forgings, castings, etc.
    2 : 1 Light finishing, allowing workpieces to collide with each other.
    3 : 1 Minimum ratio for copper, aluminum, zinc and other non-ferrous metal workpieces. The workpieces may collide with each other, so the ratio is suitable for finishing and polishing ferrous metals.
    4 : 1 Average efficiency ratio of non-ferrous metal workpieces. High efficiency ratio for ferrous metal parts.
    5 : 1 Suitable for finishing and polishing non-ferrous metal parts. Workpieces rarely collide with each other.
    6 : 1 Suitable for finishing and polishing of non-ferrous metal products. It is often used for pre-plating treatment of resin media and aluminum and zinc alloy workpieces.
    8 : 1 Suitable for finishing and polishing of non-ferrous metals or precision parts. Less surface roughness and smoothness.
    10:1~20:1 Better polishing quality. Suitable for irregular shapes or fragile workpieces.
    Max No collision between workpieces. One machine polishes one part or each workpiece needs to be separated.
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