Medium alumina grinding ball D30mm, D40mm, D50mm, D60mm
Medium alumina grinding ball produced by isostatic machines and sintered in high temperature tunnel kiln. Its wear resistance is increased 20-40times and its grinding efficiency is increased 40-60% compared with natural stone ball and normal ceramic balls. Except that using medium alumina grinding ball will increase the working life of mill.
Characteristics of alumina grinding ball from us:
High density
High hardness
High temperature resistance
High pressure ability
Anti-alkali and sulfur corrosion
| Item | Alumina grinding ball |
| Al2O3 | ≥70% |
| B.D g/cm3 | 2.95-3.00 |
| Abrasiveness | ≤0.027% |
| Water absorption | ≤0.02 |
| Mohs hardness | ≥8 |
| Color | white,light yellow,ivory |
| Diameter | 30mm,40mm,50mm,60mm |











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