Weijin Mechanical Seals Factory is specialized in production all types of pump kit machinery sealing elements and sealing auxiliary materials,such as pump mechanical seals,auto cooling pump seals,industrial pump mechanical seals and ceramic face seal,etc.The products are widely applied to machinery,chemical industry,pharmacy,auto industry and food,etc.
Features of ceramic seal faces and ceramic shaft
1.Product: ceramic shaft
2.Color: white,black,red,etc
3.Composition: Al2O3
Mainly physical performance of ceramic seal faces and ceramic shaft
| Classification | Al2O3-95 | Al2O3-99 |
| Composition | Al2O3≥90 | Al2O3≥98 |
| Density(g/cm3) | ≥3.6 | ≥3.8 |
| Porosity(%) | ≤0.5 | ≤0.4 |
| Rockwell Hardness(HRA) | ≥82 | ≥87 |
| Breaking Strength(KGF/CM2) | ≥2400 | ≥2600 |
| Stability of Thermal Vibration(Times) | ≥5 | ≥5 |
| Optical Flatness | ≤0.0009 | ≤0.0006 |
| Roughness | ≤Ra0.4 | ≤Ra0.2 |
| Light Band | ≤3 | ≤1 |
