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The alumina grinding balls has been widely used in ball mills as media for ceramic raw materials and glaze materials in ceramic factories, ceramic factories, enamel factories and glasswork owing to the extraordinarily high density, high hardness, high wear resistance. During the abrasive/grinding processes, ceramic balls will not be broken, it will not contaminate the materials to be grinded.
Type: According to the content of alumina oxide: 60-70,65-75,92,95
Accoridng to the size: Φ25mm Φ75mm
Main Specification
| Item | High alumina grinding ceramic ball | Middle alumina grinding ceramic ball | ||
| Micro-crystal middle-alumina | Carborundum middle alumina | |||
| 92Al2O3 | 95Al2O3 | 65-75Al2O3 | 60-70Al2O3 | |
| Al2O3() | ≥92 | 95 | 65-75 | 60-70 |
| SiO2() | 3.81 | 3 | 30-15 20-15 | 60-70 |
| Fe2O3() | 0.06 | 0.05 | 0.41 | <0.5 |
| TiO2() | 0.02 | 0.04 | 1.7 | 1.8 |
| Other() | 2.53 | 1.9 | 5 | 10 |
| Bulk density(g/cm3) | 3.65 | 3.68 | 2.93-3.0 | 2.90-3.0 |
| Water absorption() | <0.01 | <0.05 | <0.01 | <0.05 |
| Moh's Hardness(grade) | 9 | 9 | ≥8 | ≥8 |
| Compression strength | >2000 | >2000 | >1000 | >1000 |
| Abrsion() | 0.01 | 0.01 | 0.02 | 0.03 |
| Color | White | White | Yellow, White | Brown |
| Raw materials | Calcined alumina | Calcined alumina | Refined bauxite powder | Bauxite powder |
| Forming method | Isostatic pressing | Isostatic pressing | Impact briquetting | Handmade |
We can also be designed and manufactured to meet the need of specific applications.
Excellent Grinding Ceramic Ball for Industry