High alumina grinding ball

Alumina grinding body 75% The size; dia 30.40.50.60mm

Product parameters: The craftwork is isostatic-pressure molding, the main crystal phase is mullet; corundum;                 the crystal phase size can be controlled by materials and manufacturing technoloy. It is mainly used for all type of mineral materials, ceramic semi-products and clay glazing. Technical Index Item Isostatic Compaction Hand-made ball Carborundum 70 Series 60 Series 70 Series 60 Series AL2O3 65-72 % 58-64% 65-72 % 58-64% 55-65% Bulk Density(g/cm3) ≥3.00 ≥2.85 ≥2.90 ≥2.80 ≥2.80 Absorption Rate % ≤0.02 Moh Hardness 7.5-8 7 7-8 7 6.5-7.5 Abrasion Rate 0.3 0.5 0.5 0.5 0.5 Color LightYellow LightYellow LightYellow LightYellow DarkRed

High alumina grinding ball