- Englist
High Purity Graphite Crucibles Factory China Leading Industrial Smelting Suppliers
Our professional-grade Graphite Crucibles are engineered from a high-purity blend of graphite, clay, silica, and wax stone, specifically designed to withstand the extreme thermal demands of melting non-ferrous metals. These high-performance containers are the industry standard for smelting copper, brass, gold, silver, zinc, lead, and their respective alloys, ensuring exceptional stability and purity during the casting process.
Designed for versatility and durability, our crucibles are widely utilized across diverse sectors including jewelry manufacturing, semiconductor production, and industrial metallurgy. Whether you are processing precious noble metals or conducting specialized steel analysis, our customized graphite solutions provide the optimal balance of thermal conductivity and ablation resistance to maximize your production efficiency.
Detailed Parameters
| Refractoriness | > 2000 ºC (Protective Atmosphere) | Density | 1.78 - 1.85 g/cm3 |
|---|---|---|---|
| Flexural Strength | 38 - 60 MPa | Compressive Strength | 65 - 135 MPa |
| Carbon Content | High-Carbon | Shape | Cylindrical / Customized |
| Production Capacity | 3000 Tons/Month | Origin | China |
| Transport Package | Wooden Cases (Plywood) | Customization | Full Specification Support |
Key Advantages
Extreme Heat Resistance
Capable of withstanding temperatures exceeding 2000°C in protective atmospheres, ensuring stability in high-heat environments.
Extended Service Life
High-density graphite construction provides superior ablation resistance, allowing for multiple reuse cycles.
High Thermal Conductivity
Optimized heat transfer reduces melting time and energy consumption, increasing overall operational efficiency.
Superior Corrosion Resistance
Highly resistant to chemical attack from molten non-ferrous metals, preventing contamination of the melt.
High Purity Composition
Specially processed for noble metals (Gold, Silver, Platinum) to ensure zero impurity transfer during smelting.
Precision Customization
Available in various custom diameters and shapes to fit specific industrial furnace requirements.
Product Gallery
Management Platforms
Raw Material Control
Strict selection of high-carbon graphite, silica, and clay to ensure base material consistency.
Precision Machining
Advanced CNC machining capabilities to deliver crucibles with exact custom dimensions.
Quality Assurance
Rigorous testing of compressive strength and density for every production batch.
Thermal Validation
Simulation and testing of refractoriness to guarantee performance above 2000°C.
Logistics Security
Secure plywood wooden cases to prevent breakage during international shipping.
Capacity Management
Monthly output of 3000 tons ensures stable supply for large-scale industrial orders.
Investment Return Comparison
| Feature | Standard Crucible | Nalai Graphite Crucible |
|---|---|---|
| Service Life | Short-term | Long-term / Multi-use |
| Thermal Efficiency | Moderate | High Conductivity |
| Purity Level | Basic | Ultra-High Purity |
| Temperature Limit | Standard | > 2000°C (Protected) |
| Cost Per Melt | High (Frequent Replacement) | Low (Durable Life) |
Frequently Asked Questions
Our crucibles are ideal for non-ferrous metals including copper, brass, gold, silver, zinc, lead, and their alloys, as well as noble metals like platinum.
In a protective atmosphere, it can withstand temperatures exceeding 2000°C. In an oxygen atmosphere, oxidation typically begins between 700-800°C.
Yes, we provide comprehensive customization services for diameter, height, and shape based on your specific furnace requirements.
High density and purity prevent ablation and contamination, which is critical for maintaining the value and quality of gold and jewelry products.
All graphite crucibles are packed in reinforced wooden cases (plywood) to ensure they arrive intact and undamaged.
We specialize in a wide range of carbon products including graphite blocks, plates, rods, tubes, molds, seals, and carburizing agents.
Ready to Optimize Your Smelting Process?
Contact Us
