Alumina grinding balls
high density
high hardness
high wear resistance.
The alumina grinding ball 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, high wear resistance. During the abrasive/grinding processing, ceramic balls will not break up,
it will not pollute the grinded material as well.
Physical Functions
| product Name | Proportion g/cm3 | Wearing and tear rate g/kg.h | Water absorption % | Grade Mohs Hardness |
high Aluminum ceramic balls | 3.2-3.5 | ≤0.3 | ≤0.05 | 6 |
middle Aluminum ceramic balls | 2.5-2.7 | ≤0.5 | ≤0.2 | 7 |
| 2.8-2.9 | ≤0.4 | ≤0.05 | 8 |
Ceramic Balls | 2.2-2.4 | ≤5.0 | ≤0.5 | 6 |
Chemical Functions
| product Name | Al2O3 (%) | SiO2 (%) | Fe2O3 (%) | other (%) |
high Aluminum ceramic balls | 75-95 | 24-4 | 0.3 | 0.7 |
middle Aluminum ceramic balls | 55-65 | 40-30 | 0.5 | 4.5 |
corundum nitride ball | 60-70 | 35-25 | 0.5 | 4.5 |
Ceramic Balls | 19-23 | 76-72 | 0.5 | 4.5 |
We can product metallic substrate follow customer’s request.
