Sintered Ceramic Sand Foundry Suppliers High Quality Golden Sand Factory in China
Our Sintered Ceramic Sand, often referred to as Golden Sand or Ceramsite, is a premium artificial spherical grain medium engineered from high-quality calcined bauxite. Designed specifically for high-performance foundry applications, this material consists primarily of Aluminum Oxide and Silicon Oxide, providing a superior alternative to traditional silica sand for demanding molding and casting environments.
By leveraging a precise spherical morphology and high refractoriness, our ceramic sand ensures exceptional flowability and thermal stability. Whether used in lost foam casting, 3D printing, or precision investment casting, it delivers a smoother surface finish and improved part resolution, significantly reducing post-casting labor and enhancing overall production efficiency.
Detailed Parameters
| Chemical Component (Al₂O₃) | ≥53% | Chemical Component (SiO₂) | ≤37% |
|---|---|---|---|
| Refractoriness | ≥1800℃ | Grain Shape | Spherical |
| Angular Coefficient | ≤1.1 | Bulk Density | 1.5-1.6 g/cm3 |
| Thermal Expansion (RT-1200℃) | 4.5-6.5x10-6/k | Particle Size Range | 45μm - 2000μm |
| pH Value | 6.6-7.3 | L.O.I. | ＜0.1% |
Key Advantages
High Refractoriness
Withstanding temperatures up to 1800℃, it ensures stability in extreme heat environments.
Low Thermal Expansion
Minimizes dimensional distortion and prevents casting defects during cooling cycles.
Superior Flowability
Spherical grains allow for effortless mold filling and higher precision in complex geometries.
Smooth Surface Finish
Produces a higher-resolution final part, significantly reducing grinding and finishing time.
Lightweight Medium
Roughly half the weight of zircon, allowing for more molds per unit weight of material.
High Reclamation Rate
Excellent resistance to wear and crush, ensuring a sustainable and cost-effective cycle.
Product Gallery
Management Platforms
Casting Versatility
Compatible with cast iron, steel, and nonferrous metals for diverse industrial needs.
Binder Flexibility
As a neutral material, it works seamlessly with both acid and alkali resin systems.
Precision Molding
Optimized for lost foam, cold core box, and precision investment casting processes.
Advanced 3D Printing
Specially graded particles suitable for high-end ceramic 3D printing sand molds.
Custom Grain Size
Particle size distribution can be fully customized to meet specific AFS mesh requirements.
Logistics Efficiency
Low bulk density reduces shipping costs and eases material handling on the shop floor.
Investment Return Comparison
| Feature | Silica Sand | Ceramic Sand |
|---|---|---|
| Thermal Expansion | High (Risk of Cracks) | Very Low (Stable) |
| Surface Quality | Rough / Grainy | Smooth / High Resolution |
| Weight/Density | Standard | Ultra-Lightweight |
| Reclamation Rate | Moderate | Excellent |
| Labor Cost | High Post-Processing | Low Finishing Required |
Frequently Asked Questions
Ceramic sand offers significantly higher refractoriness, lower thermal expansion, and a spherical shape, leading to better surface finishes and higher dimensional accuracy than silica sand.
Yes, as a neutral material, our ceramic sand is compatible with both acid and alkali resins. However, we recommend optimizing the binder amount for best results.
Absolutely. We offer various mesh sizes (from 20 to 200) and can customize the particle size distribution to match your specific AFS requirements.
It is widely used in lost foam casting, resin sand molding, cold core box, precision investment casting, and innovative 3D printing sand molds.
It is significantly lighter than zircon or chromite sand, allowing manufacturers to produce approximately twice the number of molds per unit weight.
Our sintered ceramic sand features a high refractoriness of ≥1800℃, making it ideal for high-temperature steel and non-ferrous metal casting.
