Alumina Ceramics
ORTL Series — Alumina Wear Resistant Lining Brick
Interlocking alumina lining bricks for ball mills and grinding equipment. 4 grades (Al₂O₃ ≥92–97%), Mohs 9, self-wear loss ≤0.010% per 24 h. Rectangle, trapezoid and flake profiles.
Available sizes
40 mm height50 mm height60 mm height70 mm height90 mm heightCustom on request
Variants
ORTL-92 (Al₂O₃ ≥92%)ORTL-95 (Al₂O₃ ≥95%)ORTL-97 (Al₂O₃ ≥97%)
Performance Index
| Property | ORTL-92A | ORTL-92B | ORTL-95 | ORTL-97 |
|---|---|---|---|---|
| Al₂O₃ (%) | ≥92 | ≥92 | ≥95 | ≥97 |
| Density (g/cm³) | ≥3.63 | ≥3.65 | ≥3.70 | ≥3.73 |
| Mohs hardness | 9 | 9 | 9 | 9 |
| Self-wear loss (%/24h) | ≤0.010 | ≤0.008 | ≤0.006 | ≤0.005 |
| Water absorption (%) | ≤0.01 | ≤0.01 | ≤0.01 | ≤0.01 |
ORTL Series interlocking alumina lining bricks are designed for ball mills, rod mills, autogenous mills and other grinding equipment where contamination-free fine grinding is critical.
GRADES & PROPERTIES
Grade Al₂O₃ Density (g/cm³) Mohs Self-wear loss (/24 h)
ORTL-92A ≥92% 3.63 9 ≤0.010%
ORTL-92B ≥92% 3.65 9 ≤0.008%
ORTL-95 ≥95% 3.70 9 ≤0.006%
ORTL-97 ≥97% 3.73 9 ≤0.005%
Water absorption: ≤0.01% (all grades)
SHAPES & SIZES
• Rectangle brick: 40/50/60/70/90 mm height, various widths
• Trapezoid brick: for curved mill interiors
• Half-Rectangle / Half-Trapezoid: fill edge gaps
• Flake bricks: thin profile for fine-grinding mills
Special sizes: 80 mm and 110 mm height available on request.
INTERLOCKING SYSTEM
Tongue-and-groove design ensures no gaps, preventing liner displacement even under intensive grinding loads. No mortar required.
APPLICATIONS
• Ceramic raw material grinding (feldspar, kaolin, quartz, glaze)
• Pharmaceutical and food-grade grinding (99% grade)
• Mineral processing
• Ink and pigment manufacturing
Gallery
