High alumina grinding balls are used in ball mill, pot mill, librating mill and other fine breaking plants with advantages of high hardness, high volumetric density and anti-corrosion. With the smashing efficiency and scuff-resistance much better than that of common ball-stone or natural cobblestone, it is widely used in ceramics, glass, porcelain enamel, pigment, chemicals and other trade.


For non-metal mineral products extra refining, our grinding balls are the ideal grinding media for stirring grinding, sand grinder and liberating and widely applied for ceramics, paint, ink, coatings, dyes, rubber and power industries.



Type Medium Alumina High Alumina Carbonized High Alumina Carbonized
Balls Corundum
Balls Zirconia Ball Grinding Media
Size Ø10mm?Ø25mm?Ø30mm?Ø35mm?Ø40mm?Ø45mm?Ø50mm?Ø60mm?Ø70mm



Chemical Composition and Physical Properties


Type
Data Carbonized high Alumina grinding balls Medium alumina grinding balls Medium alumina grinding balls High alumina grinding balls
Al2O3, % 65 65 75 92 95
density,g/cm³ 2.9 2.9-3.0 3.2 3.65 3.70
water absoption , % <0.02 <0.02 <0.02 <0.01 <0.005
Moh's Scale ≥8 ≥8 ≥8 9 9
Colour brown cream white white white white
Abrasive Loss, % <0.025 <0.02 <0.015 0.01 0.009