Alumina Grinding Balls

The alumina grinding balls has been widely used in ball mills .

The alumina grinding balls has been widely used in ball mills as abrasive media for ceramic raw materials and glaze materials in ceramic factories cement factories, enamel factories and glasswork owing to the excellence of high density, high hardness, and high wear resistance. During the abrasive/grinding processing, ceramic balls will not be broken; it will not pollute the material to be grinded. 

According to the content of aluminum: 60%-70%,65%-75%,92%-95%According to the specification: D25mm-D75mm

Main specification:

Item High Alumina Grinding Ball Middle Aiumina Grinding Ceramic Ball Micro-crystal middle-alumina Carborundum middle alumina   95%AL2O3 92%AL2O3 65-75%AL2O3 60-70%AL2O3 AL2O3% 95 ≥92 65-75 60-70 SiO2% 3 3.81 30-15 20-15 Fe2O3% 0.05 0.06 0.41 <0.5 TiO2% 0.04 0.02 1.7 1.8 other% 1.9 2.53 5 10 Bulk Density(g/cm3) 3.65 3.60 2.93-3.0 2.80-2.90 Water Absorption% <0.005 <0.01 <0.01 <0.05 Mohs Hardness(Grade) 9 9 ≥8 ≥8 Compressive Strength(MPA) 2100 >2000 >1000 >1000 Abrasion(%) 0.0084 0.01 0.011 <0.08 Colour White White Yellow,White Brown

Alumina Grinding Balls