Graphite Heater for Vacuum Furnace
Product Overview
Our graphite heater for vacuum furnace is designed for high-temperature heating in vacuum and controlled atmosphere furnaces. Made from high-purity, high-density graphite, it delivers uniform heating, excellent thermal conductivity, and long service life.
Custom-engineered to match your furnace specifications, our graphite heaters are precision-machined from isostatic pressed graphite. They are widely used in sintering, brazing, annealing, and heat treatment processes.
Key Features
- High Purity: Low ash content ensures clean heating.
- High Temperature Resistance: Withstands up to 3000°C.
- Uniform Heating: Even temperature distribution.
- Thermal Shock Resistance: Excellent thermal cycling performance.
- Custom Design: Rod, plate, tube, grid configurations.
- Long Service Life: High density and low porosity.
Technical Specifications
| Material | Isostatic pressed graphite |
| Bulk Density | 1.70-1.85 g/cm3 |
| Ash Content | < 500 ppm |
| Max Temperature | 3000°C |
| Geometry | Rod, plate, tube, grid |
| Tolerance | ±0.05 mm |
| MOQ | 1 piece |
| Lead Time | 7-15 days |
Applications
- Vacuum sintering furnaces
- Vacuum brazing furnaces
- Semiconductor processing
- Photovoltaic furnaces
- Heat treatment
Why Choose Jincheng?
- 20+ years graphite machining experience
- In-house precision CNC machining
- Custom designs based on your drawings
- Global shipping to 50+ countries
- Competitive factory direct pricing
FAQ
Q: What is the max temperature?
A: Up to 3000°C in vacuum.
Q: Can you manufacture based on drawings?
A: Yes, OEM/ODM accepted.
Q: What is the lead time?
A: 7-15 days standard.
Graphite Crucible for Melting Copper
Product Overview
Our graphite crucible for melting copper is specifically designed for copper, brass, and bronze melting applications. Made from high-density, high-purity graphite, it offers excellent thermal conductivity, thermal shock resistance, and long service life in non-ferrous metal melting operations.
Available in various sizes and geometries, our graphite crucibles for copper melting are widely used in foundries, jewelry workshops, and metal recycling facilities. Custom sizes are available upon request.
Key Features
- High Density: Dense graphite structure resists metal penetration and erosion.
- Thermal Conductivity: Fast and uniform heating reduces melting time.
- Thermal Shock Resistant: Withstands rapid temperature changes.
- Corrosion Resistant: Resistant to copper and brass slag.
- Long Life: Extended crucible life compared to clay-graphite crucibles.
- Custom Sizes: Various shapes and dimensions available.
Technical Specifications
| Material | Isostatic pressed graphite |
| Bulk Density | 1.75-1.85 g/cm3 |
| Max Temperature | 1350°C (copper melting) |
| Shape | Cylindrical, tapered, custom |
| Capacity | 0.5kg - 500kg |
| Wall Thickness | 5-20 mm |
| Tolerance | ±0.5 mm |
| MOQ | 1 piece |
| Lead Time | 7-15 days |
Applications
- Copper Melting: For pure copper and copper alloy foundries.
- Brass & Bronze Melting: For brass and bronze casting shops.
- Jewelry Making: For small-scale precious metal melting.
- Metal Recycling: For copper scrap recycling operations.
- Laboratory Use: For research and small-batch melting.
Why Choose Jincheng?
- 20+ years graphite crucible manufacturing experience
- In-house precision CNC machining
- Strict quality control and material certification
- Global shipping to 50+ countries
- Competitive factory direct pricing
- Fast delivery and responsive support
FAQ
Q: What size crucible do I need for melting copper?
A: Size depends on your furnace and required capacity. We offer 0.5kg to 500kg capacity crucibles.
Q: How long does a graphite crucible last for copper melting?
A: With proper use, our graphite crucibles last 2-5 times longer than clay-graphite crucibles.
Q: Can you make custom size crucibles?
A: Yes, we manufacture custom crucibles based on your drawings or specifications.
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