Product Main

Specifications

Description:

Alumina grinding ball has been widely used in ball mills as abracive media for ceramic raw materials and glaze materials in ceramic factories,cement factories,enamel factories and glasswork owing to the excellence of high hardness,high wear resistance.During the abrasive or grinding processing,ceramic ball will not be broken,it will not pullute the material to be grinded.

Main specification:

Item 95% aluminum  ball 92% alumina ball 65-75% alumina  microlite ball 60-70% alumian Carborundum  ball
Chemical composition % 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 elements  (%) 1.9 2.53 5 10
Bulk density  (g/cm3) 3.68 3.65 2.93-3.0 2.80-2.90
Water absorption  (%) <0.005 <0.01 <0.01 <0.05
Mohs hardness  (Mohs) 9 9 ≥8 ≥8
Compressive strength (Mpa) 2100 >2000 >1000 >1000
Wear loss  (g/kg.h) 0.0084 0.01 0.011 <0.08
Color White White, yellow White  Brown
Main materials Alumina Alumina Refined aluminum bauxite powder Aluminum bauxite powder
Method of formation Isostatic Pressing Isostatic Pressing Impact Briquetting Handmade
Size  (mm) 25mm-75mm