Application
Designed for the filtration of grey iron, ductile (SG) iron and cast iron, where high thermal-shock resistance and mechanical strength are essential.
Foundry filtration solution
Silicon Carbide Based Ceramic Foam Filters
Our filters are manufactured using a precision replication technique with high-quality reticulated foam imported from Germany. The silicon carbide structure provides a large active surface area that captures metal oxides and other non-metallic inclusions.
The filter's tortuous pore network regulates molten-metal velocity and increases contact time, improving filtration efficiency. Metal exits in a smooth, laminar flow, helping to reduce further oxidation before it enters the mould.
Key advantages
- Cost-effective filtration
- High filtration efficiency
- Available in 10, 20 and 30 PPI
- Excellent thermal-shock resistance
- Suitable for cast iron, SG iron and copper alloys
Key Benefits
- Excellent thermal-shock resistance
- High mechanical strength at elevated temperatures
- Stable chemical performance with molten iron
- Improved casting cleanliness and yield
Material Characteristics
Silicon carbide-based ceramic foam filters provide high thermal conductivity and low thermal expansion, making them ideal for iron-casting applications involving rapid thermal cycling.
Product performance
Technical Specifications
Standard properties of our silicon carbide (SiC) ceramic foam filters.
| Property | Typical Value |
|---|---|
| Material | Silicon Carbide (SiC) |
| Color | Grey / Black |
| Pore Size | 8–30 PPI |
| Porosity | 80–85% |
| Bulk Density | 0.55 ± 0.05 g/cm³ |
| Compressive Strength | ≥ 1.0 MPa |
| Maximum Working Temperature | 1,500°C |
| Thermal Shock Resistance | Excellent |
| Recommended Metals | Grey iron, SG iron and cast iron |
Available shapes: square, rectangular and
round
Custom sizes available on request
Need detailed technical data?
Complete data sheets and custom-size information are available on request.