Grinding Media Balls - Alloy Steel
|Technocon Engineers, India >>|
Steel grinding media ball, beads in various alloy steel compositions, shapes and sizes for diverse grinding and milling applications.
| | Different steel material of grinding media | Surface finish and tolerance of steel grinding balls | |
| More shapes and sizes of steel media for grinding, milling | Application segments for grinding media |
| Steel balls for chocolate grinding |
Grinding MediaSteel Balls
|Steel forged grinding media, hardened, is very suitable wherever high wear and chemical resistance is required. Also where generation of heat is crucial to the milling and dispersion process.|
The steel 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 and hard materials. 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.
Stainless steel balls and other shapes are used for grinding applications where absolutely no iron contamination is permissible, specially in food products.
Steel Grinding Media in Ball Mill
► Grinding of solids and fluids.
In the case of chocolates, the optimal size for cocoa particles is approximately 12 microns. Your tongue has the ability to feel texture. If the particles are too big, say 20 to 75 microns, then your tongue would sense an unpleasant roughness. If the particles are too small, say 1 to 9 microns, the cocoa particles would bind up more of the expensive cocoa butter. This would add cost to the process for more butter would have to be added to keep the product fluid.
The bead mills used for cocoa mass are vertical bead mills, using 5 to 6 mm or 1/4" and 3/16" diameter steel balls, beads or shots. Other sizes used vary from 8 mm to 11 mm or 5/16" to 7/16". Chocolate makers use stainless steel (inox) mediawhere absolutely no iron contamination is permissible and otherwise hardened chrome alloy steel balls.
Chocolate is very viscous. Because of the high density, no contamination, reasonable cost and lack of wear of steel media, the chocolate companies essentially use passivated steel balls as grinding media for chocolate paste in ball mills.
►Chrome or chromium alloy steel.
|► Stainless steel or Inox, AISI 304 / 316 / 302 is used where absolutely no iron contamination is permissible. These austenitic steel are unhardenable by heat treatment. Some work hardening and strengthening takes place during cold forging process.|
Stainless steel have excellent resistance to corrosion. The stainless steel grinding media is thoroughly passivated to clean it of any carryover iron particles.
A material composition chart for different stainless and chrome alloy steel is available at
Spherical ball also referred to as shot or bead.
These are most widely used. For more information click here.
Sizes: 1 mm to 12.5 mm and 3/64 inch to 1/2 inch diameter. Details...
|Eclipse ball |
To reduce grinding costs, eclipse - steel ball with slight flattening at the poles - can be used.
Since these are not spherical or perfectly round, the price is substantially lower. For more information click here.
Sizes: 3 mm to 12 mm and 1/8 inch to 1/2 inch diameter. Details...
|Cylinders / Diagonals|
1 mm to 3 mm diameters and lengths from 6 mm to 10 mm.
In inches, 3/64" to 1/8" diameters and lengths from 1/4 inch to 3/8 inch. Details...
|Ballcones / Satellites|
Sizes: 3 mm to 6 mm and 1/8" to 1/4" ball diameter. Details...
Ground and Lapped
Technocon's grinding steel media is well accepted in the international market for
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