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0-1mm, 1-3mm, 3-5mm, 200M
SEPPE BAUXITE
SCB85
▸ Cost-effective calcined bauxite for refractory, abrasive, and ceramic applications.
★ High Alumina (85% Min)
★ Refractoriness 1770℃+
▸ Shaft calcined bauxite is produced by calcining high-grade raw bauxite in a vertical shaft kiln at temperatures around 1500-1600°C. This process removes moisture and impurities, resulting in a dense, hard material with high alumina content. It is a cost-effective choice widely used as a refractory aggregate, abrasive media, and in ceramic formulations.
▸ The shaft kiln method offers distinct advantages for cost-sensitive refractory applications:
Cost-Effective Production — shaft kilns operate with lower energy consumption and higher throughput, making this grade an economical choice for standard refractory applications.
Reliable Performance — SEPPE's strict quality control ensures consistent calcination and stable chemistry, providing dependable service in medium-duty refractory linings.
Good Density — achieves bulk density ≥2.90 g/cm³, suitable for general purpose castables, backup linings, and abrasive media.
Wide Availability — produced in large volumes with stable supply, ideal for long-term bulk contracts.
▸ XRF Chemical Analysis — every batch tested for Al₂O₃, Fe₂O₃, TiO₂, CaO, MgO content
▸ Bulk Density Measurement — pycnometer method to verify ≥3.20 g/cm³
▸ Particle Size Distribution — laser diffraction and sieve analysis for accurate grading
▸ Magnetic Separation Inspection — removal of iron contamination to meet premium specifications
▸ Batch Traceability — full documentation from raw ore source to shipping container
On-site laboratory at SEPPE processing facility
▸ Stable Chemical Composition — consistent alumina and low impurity levels ensure predictable refractory performance.
▸ Good Bulk Density — dense grain structure provides adequate wear resistance in general purpose castables and bricks.
▸ Excellent Refractoriness — withstands service temperatures up to 1770°C without deformation.
▸ Cost-Effective — lower production cost compared to rotary kiln material, ideal for budget-sensitive projects.
▸ Flexible Sizing — available in standard and custom particle size distributions to suit various industrial processes.

| Chemical Composition | |
| Al₂O₃ | 85.0% Min |
| Fe₂O₃ | 2.0% Max |
| TiO₂ | 4.0% Max |
| CaO | 0.5% Max |
| MgO | 0.5% Max |
| Physical Properties | |
| Bulk Density | ≥ 3.20 g/cm³ |
| Water Absorption | ≤ 3.0% |
| Refractoriness | ≥ 1770℃ |
| Common Sizes | 0-1mm, 1-3mm, 3-5mm, 200M |
| Grade | Al₂O₃ Content | Main Application |
| Economy Refractory | 75% Min | General purpose castables and backup linings |
| General Refractory | 80% Min | Cement plant refractories, medium-duty kiln linings |
| Premium Refractory | 85% Min | Steel ladle backup linings, tundish permanent linings |
| Specialty / High-End | 87-88% Min | High-temperature ceramics, specialty kiln furniture |
▸ SEPPE controls the entire production chain — from high-grade bauxite ore selection to fully integrated shaft kiln calcination, crushing, screening, and global logistics. Our advanced laboratory monitors every batch for chemical consistency and physical properties, ensuring you receive material that performs reliably at a competitive price point.
▸ With established supply to over 40 countries and dedicated technical support, SEPPE helps refractory, abrasive, and ceramic manufacturers reduce costs while maintaining stable production. We offer flexible packaging and OEM services to match your operational needs.
▸ 50 kg bags, 1 MT, 1.25 MT or 1.35 MT jumbo bags
▸ 20' FCL: approx 25-27 MT
▸ Private labeling and custom packaging available




▸ It is primarily used in general purpose refractory bricks, castables, backup linings, and abrasive applications where a cost-effective solution is preferred.
▸ Shaft kiln bauxite offers a lower cost option with slightly lower density (≥2.90 g/cm³) and may have minor temperature gradients. Rotary kiln bauxite achieves higher density (≥3.10 g/cm³) and more uniform calcination. Choose shaft kiln for standard applications, rotary kiln for demanding environments.
▸ Yes. In addition to our standard 85% grade, we can supply 75%, 80%, 87%, and 88% Al₂O₃ material depending on your application requirements and volume.
▸ Standard sizes: 0-1mm, 1-3mm, 3-5mm, 5-8mm, 25-50mm. Custom sizing can be arranged upon request.
▸ Absolutely. With integrated mining and processing, we maintain stable inventory levels and can support annual supply contracts with consistent quality and on-time delivery.
▸ Yes. We offer free samples for lab evaluation, along with TDS (Technical Data Sheet), SDS (Safety Data Sheet), and SGS test reports upon request.
▸ Contact SEPPE for: • Free Samples • TDS / SDS Documents • OEM Packaging Options • Bulk Container Pricing
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