Alumina Ceramic Foam Filters
Ferro Fanavaran Ceram manufactures high-quality alumina ceramic foam filters designed for the filtration of molten aluminum and other non-ferrous alloys. Manufactured from high-purity aluminum oxide (Al₂O₃), these filters feature a three-dimensional interconnected open-cell structure that efficiently removes non-metallic inclusions, oxides, and other impurities while ensuring smooth and stable molten metal flow.
Their excellent thermal stability, chemical resistance, and high porosity make alumina ceramic foam filters an ideal solution for producing clean, high-quality aluminum castings with improved consistency and reduced casting defects.
Key Features
• High Thermal Resistance
Reliable performance at temperatures up to approximately 1,200°C.
• Excellent Chemical Resistance
Highly resistant to molten aluminum and other non-ferrous alloys.
• Good Mechanical Strength
Withstands thermal shock and molten metal flow during casting operations.
• Uniform High-Porosity Structure
An interconnected open-cell structure with 80–90% porosity ensures efficient filtration while maintaining smooth molten metal flow.
Applications
• Aluminum and aluminum alloy castings
• Precision aluminum components
• Aluminum profiles and rolling products
• Automotive industry
• Aerospace industry
• Aluminum foil and packaging applications
Benefits
• Improves the surface finish and internal quality of cast components.
• Effectively removes entrapped gases, oxides, and non-metallic inclusions.
• Enhances the mechanical properties of finished castings.
• Reduces casting defects such as porosity, inclusions, and cracks.
• Increases production efficiency while lowering scrap rates and manufacturing costs.
Technical Specifications
| Chemical Composition | PPI | Porosity (%) | Color | Application temperature | Bending Strength (MPa) | Compressive Strength (MPa) | Bulk Density | Thermal Shock Resistance |
| Al2O3, SiO2 | 40-10 | 80-90% | White | Max 1200°c | 0.9≤ | 1≤ | 0.35-0.55 g/cm3 | 800°c (room temperature 5 times) |
Recommended Filter Capacity
| Size (mm) | 10ppi | 20ppi | 30ppi | |||
| Capacity (kg) | Flow Rate (kg/s) | Capacity (kg) | Flow Rate (kg/s) | Capacity (kg) | Flow Rate (kg/sec) | |
| 40×40×15 | 30 | 1.7 | 20 | 1.5 | 17.6 | 1 |
| 40×40×22 | 30 | 1.7 | 20 | 1.5 | 17.6 | 1 |
| 50×50×22 | 48 | 2.6 | 32 | 2.2 | 27.5 | 1.5 |
| 75×50×22 | 72 | 3.9 | 49 | 3.3 | 41 | 2.2 |
| 75×75×22 | 108 | 5.7 | 73 | 4.9 | 62 | 3.4 |
| 100×100×22 | 193 | 11 | 130 | 8 | 110 | 6 |
| Dia 40×20 | 29 | 1.5 | 21 | 1.2 | 16 | 0.9 |
| Dia 50×20 | 37 | 2 | 25 | 1.6 | 22 | 1.1 |
| Dia 60×20 | 54 | 2.9 | 38 | 2.2 | 31 | 1.8 |
| Dia 70×20 | 74 | 3.9 | 50 | 3.2 | 41 | 2.4 |

