Our Fused Alumina Powder and Fused Alumina Abrasive manufacturing plant
BMW has a state-of-the-art manufacturing facility of ceramic liners in Khurja, Uttar Pradesh.
Sintered Alumina Powder Manufacturing
Sintering is the process of forming a densified solid mass of alumina using heat and an oxidising atmosphere without melting. The process involves mixing powder with organic binders and lubricants, followed by pressing into shapes.
After pressing, firing is carried out to remove binders and lubricants, achieving the required density and strength. As the process continues, alumina particles bond through surface diffusion, reducing porosity and increasing densification.
Alumina Ceramic (ALUMINA92™)
BMW’s registered brand for alumina ceramic is ALUMINA92™. It is produced from sintered and fused alumina powder and is known for its exceptional hardness, wear resistance, and corrosion resistance.
It can be shaped using die pressing, isostatic pressing, slip casting, and extrusion. Its crystalline structure resembles sapphire and ruby, making it ideal for abrasion-resistant applications in coal and mineral conveying systems.
Alumina Ceramic
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92% fused alumina powder ready for pressing
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Ceramic tiles after pressing ready for sintering
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Tunnel furnace for alumina sintering
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Sintering process of alumina ceramic
Properties of Alumina Ceramic (ALUMINA92®)
| Alumina Content | 90–92% |
| Bulk Density | 3.6 GM/CC |
| Hardness | 9 Mohs |
| Water Absorption | 0.1% |
| Compressive Strength | 7000 kg/cm² |
| Flexural Strength | 1000 kg/cm² |
| Abrasion by Rubbing | 0.1 gm(max) |
| Coefficient of Thermal Expansion | 7 X 10⁻⁶ /°C |
Our Alumina Ceramic Products
1. Alumina Ceramic Liner
BMW manufactures Alumina Ceramic liner in various sizes as per the varying requirement of different clients. Ceramic liners are produced in the form of Flat & Curved Tiles, Cylindrical Sleeves, L shaped Tiles, Wedge Shape Tiles, Ball mill Tiles etc. Ceramic tiles can be of both wieldable and past able type depending upon the area of their application.
Spray dried powder
Pressed tiles
Tunnel furnace
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Tunnel furnace
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Tunnel furnace
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Tunnel furnace
2. Alumina Ceramic Grinding Media Balls & Cylpebs
Grinding media balls and cylpebs are used in ball mills for grinding and crushing materials into finer particles. These components are manufactured in various sizes to meet specific industrial requirements.
3. Alumina Ceramic Lined Components for Power Plant
Ceramic lined mill spares used in major coal plants including items like Pipes, Bends, Y lateral, MPO, MDV, Innercone, Orifices etc. are ceramic lined in order to reduce their rate of erosion and enhance their overall working life.
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Lining Erosion Warning System
LEWS is an innovative solution designed to monitor and warn of erosion in alumina ceramic-lined bends. By fitting high-impact erosion areas with an electronic warning system, LEWS provides alerts at least 6–8 months before potential punctures. This advance notice enables plant maintenance teams to schedule replacements, avoiding emergency pipeline shutdowns.
With limited knowledge of erosion behavior in coal bend linings, LEWS addresses this gap effectively, offering early warnings—up to three months in advance—for coal pipeline bend failures. It has become a critical maintenance tool under repetitive tangential impact erosion, ensuring timely intervention and enhanced operational reliability.