Alumina grinding balls are widely used in ball mills as abrasive media for ceramic raw materials and glaze materials. Ceramic, cement and enamel factories as well as glasswork plants use them because of their excellence of high density, their high hardness, and their high wear resistance. During the abrasive/grinding processing, ceramic balls will rarely be broken and the contamination factor is minimal.
Main specifications of Alumina (Al2O3) Grinding Balls Type BGA-92
| Item |
Value |
| AL2O3 |
>92 % |
| SiO2 |
3.8 % |
| Fe2O3 |
0.06 % |
| TiO2 |
0.02 % |
| Other |
2.5 % |
| Water absorption |
<0.02 % |
| Solid bulk density |
3.6 g/cm3 |
| Volumetric bulk density |
1.5-1.8 kg/l |
| Mohs hardness (Grade) |
9 |
| Attrition loss |
<0.015 % |
| Colour |
white |
Size
| Diameter(mm) |
Φ 13 |
Φ 25 |
Φ 30 |
Φ 40 |
Φ 50 |
Φ 60 |
Φ 70 |
| Tolerance（mm） |
±1 |
±1 |
±1.5 |
±1.5 |
±2 |
±2 |
±3 |
Other
We also have available all sizes of Al2O3 balls in between Φ3mm and including Φ60mm. Other contents of Al2O3 60% – 70%, 65% – 75%, 92% – 95%, and above 99%.
