Our High Density Graphite Crucibles are engineered for extreme industrial environments, specifically designed for metal melting, casting, and vacuum evaporation coating. Utilizing premium artificial graphite powder and a precision-controlled mixing process, these crucibles deliver exceptional thermal stability and mechanical strength, ensuring optimal performance in high-temperature vacuum applications.
Manufactured with a rigorous production flow—from double-axis stirring and high-pressure molding to precision firing—each crucible is optimized for chemical purity and corrosion resistance. Whether used in metallurgy or advanced coating processes, our graphite solutions provide the reliability needed to maintain high-quality output and extended service life.
| Model No. | NaLai-Graphite Crucible-005 | Origin | China |
|---|---|---|---|
| Flexural Strength | 38-60 MPa | Compressive Strength | 65-135 MPa |
| Production Capacity | 900 ton/Year | Material | Artificial Graphite Powder |
| Density Range | 1.58 - 1.9 g/cm³ | Porosity | ≤ 15% |
| Ash Content | ≤ 32 μm | Application | Metal Melting/Casting |
Engineered to withstand aggressive chemical environments and molten metals without degradation.
Superior heating structure ensures consistent temperature distribution for precise melting.
High-grade graphite materials minimize contamination in vacuum evaporation coating processes.
Excellent electrical load capacity, making it ideal for induction heating and electric furnaces.
High compressive and breaking strength prevents deformation under extreme thermal stress.
Advanced material composition reduces oxidation rates, extending the overall lifecycle of the crucible.
Strict selection of artificial graphite powder and needle coke to ensure baseline purity.
Utilizing insulated double-axis stirring drums for perfectly proportional material blending.
High-pressure pressing technology ensures consistent density and eliminates structural voids.
Controlled drying and furnace firing processes to optimize mechanical strength.
Rigorous testing for compressive strength, resistivity, and ash content.
Secure export packaging using reinforced plywood wooden cases for global shipping.
| Performance Metric | Standard Graphite | Nalai High-Density |
|---|---|---|
| Service Lifespan | Short/Moderate | Extended/High |
| Thermal Stability | Average | Superior |
| Contamination Rate | Moderate | Ultra-Low |
| Replacement Cycle | Frequent | Infrequent |
| Overall Efficiency | Standard | High ROI |
They are primarily used for metal melting, casting, and specifically for vacuum evaporation coating where high purity and thermal stability are required.
Higher density increases the compressive strength and corrosion resistance, reducing the porosity and preventing molten metal infiltration.
Yes, our specifications are fully customizable to meet the specific dimensions and requirements of your industrial equipment.
We use premium artificial graphite powder mixed with specific binders and additives, processed through a double-axis stirring and high-pressure molding system.
The standard delivery time is typically 2-3 weeks after the deposit is received.
All crucibles are packed in durable plywood wooden cases to ensure they arrive intact and protected from external impact during transit.
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