1,high density
2,high hardness
3,high wear resistance.
The Alumina Grinding Ceramic 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.
Type
According to the content of aluminum
55-65% 65-75% 92% 95%
According to the specification
19mm-60mm
Grinding balls main technical parameter
| Al2O3Content | proportion | dont hardness | compression strength | water absorbtion | wearing and tear rate |
| 55-65-95% | 2.7-2.7-3.7g/mm3 | ≥8.5 | ≥1690MPa | ≤0.2% | 0.05% |
| Compression Resistance stress | Validweight Intenerate Temperature | Fire Resistance | Channel Density | Refire Shrinkage |
| ≥500kg/CM2 | 0.1MPa-1450 | ≥1790 | ≤21 | ≤0.1% |
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 |
