OKAYAMA GIKEN (Minerals) Co., Ltd. specializes in high-quality Dead Burned Magnesite (DBM) produced in China. Our Dead Burned Magnesite factory is located in a region rich in high-quality magnesite resources. We produce Liaoning Haicheng-grade Dead Burned Magnesite (DBM), renowned for its high purity and excellent refractory properties. Our DBM is exported to Europe year-round.meeting the stringent demands of refractory and ceramic industries.
China's Dead Burned Magnesite (DBM) is produced in annular shaft kilns, a high-temperature processing unit where magnesite is sintered at a controlled temperature of 1700-1750°C.As a Dead Burned Magnesite manufacturer，our Dead Burned Magnesite is specially processed to ensure outstanding thermal stability and resistance to chemical attack, making it highly durable and reliable in demanding environments. Meeting the highest European standards and certifications.
• DBM is renowned for its high purity and excellent refractory properties.
• With a dense crystalline structure, it offers high resistance to heat and corrosion, making it widely used in ceramics.
• Its chemical inertness and exceptional heat resistance make DBM almost exclusively used in refractory applications.
• The final product has low silicon content and high iron content, making it suitable for hot patching in furnaces. The high iron content also facilitates rapid sintering, making it ideal for monolithic refractories, such as magnesia bricks and granular refractory materials.
• DBM is a low-reactivity, highly refractory compound with one of the highest melting points among common refractory oxides. It is the ideal insulation material for high-temperature industries like cement, glass, and steel.
• We offer customized DBM grades tailored to specific chemical, physical, and sizing requirements based on customer needs.
| Specification(%) | ||||||
| Brand (size0- 150mm) | MgO min. | LOI max | SiO₂ max. | CaO max. | Fe₂O₃+ Al₂O₃ max. | B.D.G/cm3 Min. |
| DBM-90 | 90 | 0.6 | 4.5 | 2.5 | 3 | 3.05 |
| DBM-93 | 93 | 0.6 | 4 | 2.2 | 2 | 3.05 |
| DBM-95 | 95 | 0.3 | 2 | 1.8 | 1.5 | 3.15 |
| DBM-96 | 96 | 0.2 | 1.4 | 1.8 | 1 | 3.25 |
| DBM-97 | 97 | 0.2 | 0.7 | 1.4 | 0.9 | 3.25 |
| DBM-972 | 97.2 | 0.2 | 0.6 | 1.2 | 0.9 | 3.25 |
| DBM-975 | 97.5 | 0.2 | 0.55 | 1.1 | 0.8 | 3.27 |
| DBM-98 | 98 | 0.25 | 0.3 | 0.8 | 0.6 | 3.3 |
