Zhengzhou Zhongkeda Refractory Materials Co., Ltd
Magnesium Aluminum Spinel Brick
Magnesia Alumina Spinel Brick | High Performance Refractory Solution for Cement Rotary Kilns
Magnesia alumina spinel brick is a high-performance basic refractory brick made from high-quality magnesia and synthetic spinel materials.
The addition of spinel improves thermal shock resistance and corrosion resistance, making it an ideal refractory solution for cement rotary kilns and other high-temperature industrial equipment.
Parameters of Magnesia Alumina Spinel Brick
|
Item |
MAJ-01 |
MAJ-02 |
MAJ-03 |
MAJ-04 |
| MgO,(%)≥ | 88 | 86 | 84 | 82 |
|
Al₂O₃,(%)≥ |
6 | 9 | 9 | 8 |
|
SiО₂,（％）≥ |
0.5 | 0.5 | 0.8 | 1.0 |
|
Bulk density, （g/cm³） |
2.9 | 2.9 | 2.85 | 2.8 |
|
Open porosity,(% )≤ |
18 | 18 | 19 | 20 |
|
Compressive strength, (N/mm²)≥ |
60 | 60 | 50 | 45 |
|
Softening onset temperature, (℃), ≥ |
1700 | 1700 | 1680 | 1650 |
|
Thermal resistance, (times)≥, |
10 | 10 | 10 | 10 |
|
Thermal conductivity, 1000℃, (W/m•K) |
2.9 | 2.9 | 2.8 | 2.7 |
Key Feature
Typical Application
Why Choose ZKD Magnesia Alumina Spinel Brick
✔ Professional refractory brick manufacturer
✔ Stable raw material supply
✔ Advanced tunnel kiln firing
✔ Strict quality inspection
✔ Customized sizes available
FAQ
1. What is magnesium-alumina spinel brick?
Magnesium-alumina spinel brick is a basic refractory brick made from magnesia and alumina-based spinel materials for high-temperature applications.
2. Where is magnesium-alumina spinel brick used?
It is mainly used in cement rotary kilns, especially in burning zones and transition zones. It can also be used in lime kilns and other high-temperature furnaces.
3. What are the advantages of magnesium-alumina spinel brick?
It offers good thermal shock resistance, clinker resistance, high-temperature stability and mechanical strength.
4. How do I choose the right magnesium-alumina spinel brick grade?
Grade selection depends on kiln zone, operating temperature, thermal cycling, chemical conditions and mechanical requirements. ZKD can recommend a suitable grade based on your application.
5. What sizes are available for magnesium-alumina spinel bricks?
Standard sizes are available, and customized sizes and special shapes can be produced according to drawings and application requirements.
6. Can ZKD supply customized magnesium-alumina spinel bricks?
Yes. We supply customized sizes and special shapes with factory-direct production and OEM packaging options.
