Alumina Ceramic Balls (Al₂O₃)
Alumina ceramic features good hardness, excellent wear resistance and stable chemical corrosion resistance. It can work steadily long-term under fluctuating temperatures, acidic and alkaline harsh conditions, ideal for cost-effective clean grinding and precision wear-resistant components. Named high-alumina balls for over 95% alumina content, these white or yellow spheres are available with matte finishing and custom drilling services.
GELINDE Optical’s alumina grinding balls serve precision grinding and wear-resistant component applications. Used as grinding media in ball mills and sand mills, they conduct ultrafine grinding of kaolin, titanium dioxide, ceramic and electronic powders, and also fit valve fittings, high-temperature seals and precision balls.
| Materials | Al₂O₃ Content | Color | Mohs Hardness |
|---|---|---|---|
| Al₂O₃ | 95% | You can choose off-white / beige color | 9 |
| 99.50% | |||
| 99.70% | |||
| 99.99% |
| Specification | |
|---|---|
| Nominal Ball Diameters | 0.6 – 200 mm |
| Maximum Allowable Deviation from Spherical Form (max) | < 0.25 μm |
| Maximum Allowable Variation of Ball Lot Diameter (max) | < 0.5 μm |
| Maximum Allowable Surface Roughness Ra (max) | < 0.02 μm |
| 100% under microscopic inspection before delivery. 100% clean room inspection and packing. |
|
| Packing Method： – Clean Vacuum Plastic Bag |
