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Grinding Media  


We manufacture steel grinding media in various alloy steel compositions, shapes and sizes for diverse grinding and milling applications. This grinding media for ball mills, pulverizers and attritors is cold forged and ground. The hardened steel balls (shots, beads) are available in different hardness, as required, in both high carbon steel and chrome alloy steel. Precise heat treatment insures their resistance to flaking, chipping or spelling.

Hardened steel forged grinding media is very suitable wherever high wear and chemical resistance is required. And also where generation of heat is crucial to the milling and dispersion process. The steel shots, balls and beads - ball mill media - are preferred for contamination free and speedy (dry / wet) milling, grinding of solids, liquids dispersion and fine particle size reduction, homogenization of fillers and raw materials, attrition and pulverizing applications in ball, vibro, dyno, pearl, bead, pebble, attritor and small-media mills, vertical or horizontal.

Alloy steel media is particularly suitable because of its high relative density and hardness, for crushing and mixing heavy & hard materials. And also where high pressure and impact grinding or crushing methods are employed. The forged steel media balls also find advantage in reducing particle size and fine dispersion of highly viscous fluids.


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Our grinding media are manufactured in carbon steel and chrome alloy steel. Normally, carbon steel balls are used for common low speed grain grinding such as metal or chemical powders. For high speed ball mill grinding process such as paints, inks or resin powders, chrome alloy steel balls are usually used for extended durability.

Since grinding media are always consumed in a great volume, cost and durability become the most important characteristics sought. We have been concentrating on developing cheap but durable grinding media for many years and are now able to provide the most cost saving and most durable grinding media in the market. We supply our grinding media in various finishes and shapes to save every penny. Our special heading and heat treating processes guarantee a much better durability. We will be pleased to develop custom made grinding media for any special grinding process.

Advantages
Steel grinding media finds advantage where:
High wear and chemical resistance is required.
Generation of heat is crucial to the milling and dispersion process.
Contamination free and speedy (dry / wet) milling is important.
Crushing and mixing heavy and hard materials is undertaken.
High pressure and impact grinding or crushing methods are employed.
Reducing particle size and fine dispersion of highly viscous fluids is required.

Material
AISI

Common Name

Hardness

52100

Bearing Steel

HRC 60 - 67

440C

Stainless Steel

HRC 58 - 65

304

Stainless Steel

HRC 25 - 39

1012

Carbon steel

HRC 60 min


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Standard for mill balls

Drum shape for mill balls

Nominal size

Nominal Size

Dimension

1.0 mm - 2"

 

A

B

7/32

0.22" (5.6)

0.21" (5.3)

15/64

0.24" (6.3)

0.23" (6.0)

1/4

0.25" (6.5)

0.24" (6.2)

5/16

0.32" (8.2)

0.30" (7.8)

 
 


Stainless Steel Balls  |  Non-Ferrous Brass Balls  |  Bearing Balls  |  Bicycle Balls  |  Grinding Media  |  Burnishing Media
Why MBI?  |  Manufacturing Process  |  Glossary  |  Ball Applications  |  Grades/Tolerances  |  Chemical Composition
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