High Refractoriness Ceramsite Foundry Sand China Factory and Suppliers
Our High Refractoriness Ceramsite Foundry Sand is a premium-engineered ceramic casting medium specifically designed for demanding steel casting and high-temperature alloy applications. By combining a spherical morphology with a robust mineralogical composition of Mullite and Corundum, this high-performance sand ensures exceptional thermal stability and superior mold filling, significantly reducing casting defects and enhancing overall productivity.
Engineered for versatility, this Ceramsite sand is compatible with a wide range of binder systems, including phenolic urethanes, furan, and sodium silicate. Its unique low thermal expansion rate and high particle strength make it an ideal choice for foundries seeking to optimize dimensional accuracy, increase reclamation rates, and minimize environmental waste in the production of aluminum, iron, copper, and magnesium parts.
Detailed Parameters
| Al₂O₃ Content | ≥53% | Refractoriness | ≥1800℃ |
|---|---|---|---|
| SiO₂ Content | ≤37% | Bulk Density | 1.45-1.6 g/cm3 |
| Fe₂O₃ / TiO₂ | ＜4% / ＜3% | Thermal Expansion | 4.5-6.5x10-6/k |
| Grain Shape | Spherical (Coeff ≤1.1) | Particle Size | 45μm - 2000μm |
| Mineral Composition | Mullite + Corundum | PH Value | 6.6-7.3 (Neutral) |
Key Advantages
Superior Flowability
The spherical shape and smooth surface ensure excellent filling ability and high flowability, requiring less binder for the same mold strength.
Thermal Stability
Low thermal expansion rate minimizes casting cracks and dimensional defects, resulting in a significantly higher output rate.
High Refractoriness
Composed mainly of Al2O3 and SiO2, the mullite and corundum phases ensure stability under extreme heat of 1800℃.
Enhanced Venting
Optimized grain structure allows for superior venting ability and excellent collapsibility during the shake-out process.
High Recovery Rate
Superior particle strength reduces breakage during reclamation, minimizing waste sand and environmental pollution.
Universal Compatibility
Neutral PH value makes it suitable for all metal alloys and compatible with nearly all industrial binder systems.
Product Gallery
Management Platforms
Custom Granulometry
Particle size distribution can be precisely customized from 45μm to 2000μm to meet specific mold requirements.
Binder Optimization
Works seamlessly with furan, sodium silicate, phenolic urethanes, and bentonite clays for maximum efficiency.
Quality Control
Strict monitoring of Al2O3 and SiO2 levels to ensure consistent refractoriness across every batch.
Waste Reduction
Optimized for high reclamation rates, lowering the cost of raw materials and environmental impact.
Multi-Metal Support
Engineered for steel, aluminum, gray iron, ductile iron, copper, and magnesium castings.
Precision Sizing
Available in various AFS mesh sizes including 20/40, 40/70, 70/140, and 100/200.
Investment Return Comparison
| Performance Metric | Standard Silica Sand | Ceramsite Foundry Sand |
|---|---|---|
| Thermal Expansion | High (More Defects) | Very Low (High Precision) |
| Binder Consumption | Standard | Reduced (Due to Spherical Shape) |
| Reclamation Rate | Moderate | High (Lower Breakage Rate) |
| Max Temperature | Limited | High (Up to 1800℃) |
| Casting Surface | Standard | Smooth / High Quality |
Frequently Asked Questions
Ceramsite sand offers significantly higher refractoriness (up to 1800℃) and a lower thermal expansion rate, which prevents casting cracks and ensures better dimensional accuracy in high-temperature steel applications.
It is compatible with almost all industrial binders, including phenolic urethanes, phenolic ester, furan, sodium silicate, bentonite clays, shell resins, and alkyd oils.
The spherical shape provides superior flowability and filling ability. It also reduces the surface area, meaning less binder is required to achieve the same mold strength compared to angular sands.
Yes, we provide a wide range of particle size distributions (from 45μm to 2000μm) and AFS mesh options to meet the specific requirements of different casting complexities.
Due to its higher particle strength and lower breakage rate during reclamation, Ceramsite allows for a much higher reuse rate, significantly reducing waste sand and environmental pollution.
Absolutely. Its neutral PH value and high thermal stability make it ideal for aluminum, copper, magnesium, and various other metal alloy castings.
