| Customization: | Available |
|---|---|
| Color: | White |
| Diameter: | 3-60mm |
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92% 99% Alumina Grinding Ceramic Ball
Grinding Balls are suitable for grinding medium used in ball grinding machines.
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.
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.
| Φ2 | Φ3 | Φ6 | Φ8 | Φ10 | Φ13 |
| Φ16 | Φ20 | Φ25 | Φ30 | Φ38 | Φ50 |
| Φ60 | Φ70 |
| Index | high alumina grinding ball | medium alumina grinding ball | carbide alumina grinding ball | |
| Al2O3(%) | 95 | >=92 | 65-75 | 60-70 |
| SiO2(%) | 3 | 3.81 | 15-30 | 15-20 |
| Fe2O3(%) | 0.05 | 0.06 | 0.41 | 0.5 |
| TiO2(%) | 0.04 | 0.02 | 1.7 | 1.8 |
| Others(%) | 1.9 | 2.53 | 5 | 10 |
| Bulk density(kg/m3) | 3.68 | 3.68 | 2.93-3.00 | 2.80-2.90 |
| Water absorption(%) | <5% | <5% | <5% | <5% |
| Moh's hardness (Class) | 9 | 9 | >8 | >8 |
| Compressive strength(Mpa) | 2100 | <2000 | >1000 | >1000 |
| Wear rate(%) | 0.0084 | 0.01 | 0.011 | 0.08 |
| Form method | Balanced extrusion | Balanced extrusion | extrusion moulding | hand-made |
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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