Precision Balls
Aluminum Oxide(Alumina,Al2O3) / Silicon Nitride(Si3N4) Zirconia(ZrO2)
0.8mm - 1/2" G3/G5
0.8mm - 1.0" G10/G16
0.8mm - 38mm G20/G28
0.8mm - 2.0" G40/G100/G200 |
 |
Alumina (Al2O3) Grinding Media
Al2O3: The Al2O3 medias are made with super fine alumina powders, moulded by bag isostatic pressing and sintered at high temperature.High hardness, Non-conductive, Non-magnetic, Super insulatibity and Low price Applicable occasion: Ceramics, Building materials, Chemicals, Cements, Paints, Nonmetallies, Mechanical polishing Size: Balls:Φ1, Φ2, Φ3,Φ5, Φ6.5, Φ10, Φ15, Φ20, Φ25, Φ30, Φ35mm，Φ40, Φ50, Φ60, Φ70mm Cylinders:Φ12.7×12.7, Φ19.1×19.1, Φ25.4×25.4, Φ38×38, Φ50×50 mm，Φ60×60, Φ70×70mm |
|
Specification: 75% Alumina |
|
Real specific weight: |
3.10 min. |
|
Chemical composition (%): |
|
Al2O3 |
75+/-1% |
|
Hardness (Mohs): |
8 |
|
Roundness (%): |
>90 |
|
Crushing Strength(50mm): |
min.1100kgf/mm2 |
|
Water absorption: |
0.03% max. |
|
Self wearing: |
0.04% max.(24h) |
|
Color: |
White |
|
Sizes available, Æ (mm): |
40, 50, 60mm |
|
|
Specification: 90/92 Alumina |
|
Real specific weight: |
3.6 2min. |
|
Chemical composition (%): |
|
Al2O3 |
min. 91+/-1% |
|
SiO2 |
7% max. |
|
CaO+MgO+Fe2O3+others: |
2% |
|
Hardness (Mohs): |
9 |
|
Roundness (%): |
>90 |
|
Crushing Strength(50mm): |
min.2000kgf/mm2 |
|
Water absorption: |
0.015% max. |
|
Self wearing: |
0.019% max.(24h) |
|
Color: |
White |
|
Sizes available, Æ(mm): |
10, , 20, 30,-120 |
|
|
