Our 99.95% High Carbon Graphite Crucibles are engineered for extreme precision and durability, specifically designed for vacuum coating and high-temperature metal melting and casting. Utilizing premium artificial graphite powder and advanced double-axis stirring mixing technology, these crucibles ensure an ultra-homogeneous structure that can withstand the most demanding thermal environments.
Designed for industrial excellence, these crucibles offer exceptional chemical purity and mechanical strength. Whether you are operating in vacuum coating or metallurgy, our products provide the necessary stability and corrosion resistance to maximize your production efficiency and ensure the highest purity of your melted materials.
| Model Number | NaLai-Graphite Crucible-035 | Origin | China |
|---|---|---|---|
| Flexural Strength | 38-60 MPa | Compressive Strength | 65-135 MPa |
| Production Capacity | 900 ton/Year | Application | Metal Melting/Casting |
| Ash Content | ≤ 0.01% | Particle Size | ≤ 32 μm |
| Density Range | 1.58 - 1.9 g/cm³ | Porosity | ≤ 15% |
Engineered to resist chemical erosion and oxidation, ensuring a longer service life even in aggressive industrial environments.
Advanced graphite density ensures consistent heat distribution, preventing hotspots and improving melting efficiency.
With 99.95% purity, our crucibles minimize contamination in vacuum coating and precision casting processes.
High electrical load capacity and superior conductivity allow for faster ramp-up times in electric furnaces.
Robust compressive and breaking strength prevents cracking under extreme thermal shock and pressure.
We provide tailored dimensions and material grades to meet the specific technical requirements of your project.
Strict selection of artificial graphite powder and needle coke to ensure base material consistency.
Utilizing insulated double-axis stirring drums for perfectly proportional material blending.
Advanced press systems ensure maximum density and minimal porosity in every crucible.
Precise temperature control during the furnace firing process to eliminate internal stresses.
Comprehensive testing of compressive strength and resistivity before final packaging.
Secure shipping using plywood wooden cases to prevent damage during international transit.
| Performance Metric | Standard Graphite | Nalai High Carbon |
|---|---|---|
| Service Life | Short/Moderate | Extended/High Durability |
| Thermal Stability | Standard | Excellent (Low Expansion) |
| Purity Level | 98% - 99% | Up to 99.95% |
| Heating Speed | Average | Rapid (High Conductivity) |
| Replacement Cost | High (Frequent) | Low (Long-term usage) |
They are primarily used in vacuum coating, precious metal melting, alloy casting, and any industrial process requiring high temperature and high purity environments.
High carbon purity increases electrical conductivity, improves thermal shock resistance, and ensures that there are fewer impurities to contaminate the melted metal.
Yes, we offer fully customized specifications to match your existing furnace dimensions and specific capacity requirements.
The standard delivery time is approximately 2-3 weeks after the deposit is received, depending on the order volume.
We use high-quality plywood wooden cases to ensure the products are securely transported and protected from impact during sea or land freight.
Our minimum order quantity is 20 tons, which typically fills one 20' FCL container.
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