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 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 density:
The high density, high hardness and the high grinding characters save the grinding time, enlarge the smashing room. So it can improve the grinding efficiency.
The standard specification: 3~50mm or customized.
Alumina Grinding Balls
| 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 | 9 | 0.0084 | |
| Medium Alumina Grinding Balls | 65-75 | 2.93 | ＜0.01 | 8 | ＜0.01 |
| Carbonized Alumina Grinding Balls | 0-70 | 2.8-2.9 | ＜0.05 | 8 | ＜0.08 |
Appearance Demand
| High Alumina Grinding Balls | Medium Alumina Grinding Balls | Carbonized Alumina Grinding Balls | |
| Color | White | White | Ash-black |
| Crack | Not Permission | Not Permission | Not Permission |
| Impurity | Not Permission | Not Permission | Not Permission |
| Foam hole | Above ф1mm not permission, size in ф0.5mm permit 3 balls | ||
| Flaw | Max. size in ф0.3mm permit 3 balls | ||
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