Magnesia–alumina spinel brick
Magnesia & spinel bricks
Selected cement rotary-kiln burning and transition zones; other basic refractory positions after review.
- MgO (%)
- 80–82
- Al₂O₃ (%)
- 12–15
- RUL at 0.2 MPa (°C)
- ≥1700
Catalogue reference values
Application focus
Cement Kiln Refractory Bricks & Castables
Start with the part of the cement kiln system you need to replace or repair. Rotary-kiln bricks, preheater linings and kiln-hood castables face different conditions. We connect the material enquiry with group production and technical resources as the requirement develops.
Cement kilns
For a first message, tell us which kiln section needs attention, what is installed now and where the materials will be delivered. You can add photos and detailed documents in the conversation.
Start with the lining position
Rotary-kiln burning and transition zones
Describe the existing brick zone, brick shape, coating behaviour, fuel mix and shutdown history. Magnesia-alumina spinel and silicon mullite entries provide different starting points for discussion; the precise position and grade need review. Keep mechanical damage and chemical attack distinct when describing a failed lining.
Preheater, calciner and kiln inlet
Alkali-resistant materials can be discussed for selected preheater and kiln-inlet positions. Include deposits, build-up, gas or dust exposure and the current damage pattern. A material selected for one part of the system should not be carried into another zone without checking its operating conditions.
Kiln hood, cooler and ducts
For a castable lining or repair, identify the area, existing thickness if known, anchors, access and the available shutdown window. Material choice must be coordinated with installation, curing and the selected lining’s dry-out requirements. A photo or marked-up drawing is a useful starting point.
Products to discuss
These are starting points for a selected position. Confirm the grade, exposure and installation requirements for your job.
Silicon mullite brick
Aluminosilicate bricks
Cement-kiln transition zones; kiln hood, cooler and duct positions where the proposed shape and lining design are suitable.
- Al₂O₃ (%)
- ≥63
- SiC + SiO₂ (%)
- ≥30
- RUL at 0.2 MPa (°C)
- ≥1650
Catalogue reference values
Alkali-resistant brick
Aluminosilicate bricks
Cement preheaters, calciners and kiln-inlet systems, subject to operating conditions.
- Al₂O₃ (%)
- 25–30
- SiO₂ (%)
- 60–65
- RUL at 0.2 MPa (°C)
- ≥1300
Catalogue reference values
Product illustrationRefractory castables
Monolithics & jointing materials
Kiln hoods, coolers, ducts, furnace linings and local repairs.
Tell us your application to discuss product options.
Useful details for the next conversation
Share what you have. Complete drawings and technical details are not required to start.
- Equipment position and existing material, if known
- A damage photo, drawing or current material list
- Approximate quantity and shutdown timing, when available
- Destination country or port and your reply contact
Common enquiry questions
Can I start without a complete lining drawing?
Yes. Send the kiln position, a photo or existing material name and a short description of the need. Drawings, quantities and operating details can be developed during follow-up.
Can one refractory grade cover the whole kiln system?
The different zones require separate review. Temperature exposure, coating, chemistry, abrasion and mechanical conditions vary. The listed products are discussion options rather than a universal zone-by-zone prescription.
Can we discuss supply and installation support together?
Yes. Tell us whether the requirement is material supply, repair support or a defined engineering package. Site work, local resources, responsibilities and delivery arrangements need to be agreed for the actual project.
Related buying guides
Refractory materials for cement kiln systems
A starting overview of shaped materials, castables and insulation for cement-kiln discussions.
Refractory bricks or castables: where does the discussion start?
Understand the basic forms before discussing a lining requirement.
What affects a refractory material quotation?
The main product and delivery details that help move an enquiry towards a quotation.
Start your enquiry
For a first message, tell us which kiln section needs attention, what is installed now and where the materials will be delivered. You can add photos and detailed documents in the conversation.