Alumina Grinding Ball
Introduction:Alumina Grinding Balls are suitable for grinding medium used in ball grinding machines.Typical Characteristics：
Product
Al2O3（%）
Bulk density（g/cm3）
Water absorption（%）
Moh’s Hardness（scale）
Abrasion loss（%）
High Alumina Grinding Balls
92
3.65
＜0.01
9
0.011
95
3.68
＜0.005
0.0084
Medium Alumina Grinding Balls
65-75
2.93
8
Carbonized Alumina Grinding Balls
60-70
2.8-2.9
＜0.05
＜0.08
Appearance Demand：
Color
White
Ash-black
Crack
Not Permission
Impurity
Foam hole
Above ф1mm not permission, size in ф0.5mm permit 3 balls
Flaw
Max. size in ф0.3mm permit 3 balls
Advantage：★High wear-resistance:The alumina balls’ wear-resistance is higher than the common alumina balls’. When it is working, the ball won’t pollute the grinding materials, so it can keep the purity and improve the stability of grinded materials especially the ceramic glaze. ★ High densityThe high density, high hardness and the high grinding characters save the grinding time, enlarge the smashing room. So it can improve the grinding efficiency.