[ Products Description ]
The alumina grinding balls has been widely used in ball mills as abrasive media for ceramic raw materials and glaze materials in ceramic factories, cement factories, enamel factories and glasswork owing to the excellence of high density, high hardness, high wear resistance. During the abrasive/grinding processing, ceramic balls will not be broken, it will not pollute the material to be grinded.
Type: According to the content of aluminum: 60-70%, 65-75%, 92%, 95%
According to the specification: Φ25mm-Φ75mm
[ Technical Specification ]
| Item |
High Alumina Grinding Ceramic Ball
95% Al2O3 |
Middle Alumina Grinding Ceramic Ball
92% Al2O3 |
Micro-crystal middle-alumina
65-75% Al2O3 |
Carborundum middle alumina
60-70% Al2O3 |
| Chemical Composition % |
Al2O3 % |
95 |
≥92 |
65-75 |
60-70 |
| SiO2 % |
3 |
3.81 |
30-15 |
20-15 |
| Fe2O3 % |
0.05 |
0.06 |
0.41 |
<0.5 |
| TiO2 % |
0.04 |
0.02 |
1.7 |
1.8 |
| Other, % |
1.9 |
2.53 |
5 |
10 |
| Bulk Density (g/cm3) |
3.68 |
3.65 |
2.93-3.0 |
2.80-2.90 |
| Water Absorption, % |
<0.005 |
<0.01 |
<0.01 |
<0.05 |
| Mohs' Hardness (Grade) |
9 |
9 |
≥8 |
≥8 |
| Crushing Strength (MPA) |
2100 |
>2000 |
>1000 |
>1000 |
| Abrasion, % |
0.0084 |
0.01 |
0.011 |
<0.08 |
| Colour |
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 |
|
