Graphite Heating Elements for Vacuum Furnace
Product Overview
Our high-quality graphite heating elements are designed for vacuum furnaces and high-temperature sintering furnaces, providing uniform heating, excellent thermal efficiency, and long service life. Made from high-purity isostatic or extruded graphite, these graphite heating rods deliver reliable performance up to 2800°C in vacuum or inert atmosphere environments.
We manufacture graphite heating elements in various shapes and sizes including cylindrical rods, strip heaters, and custom configurations. Our graphite heating elements are used in vacuum brazing furnaces, sintering furnaces, crystal growth furnaces, and heat treatment equipment worldwide.
Key Features
- High operating temperature up to 2800°C in vacuum
- Excellent thermal conductivity for uniform heating
- Low thermal expansion for dimensional stability
- High mechanical strength at elevated temperatures
- Resistance to thermal shock for reliable operation
- Various shapes and sizes available
- Custom designs based on your furnace geometry
- Replacement elements for all major furnace brands
Technical Specifications
| Parameter | Specification |
|---|---|
| Material | Isostatic / Extruded graphite |
| Density | 1.70-1.80 g/cm³ |
| Electrical Resistivity | 10-15 μΩ·m |
| Flexural Strength | 30-45 MPa |
| Max Temperature | 2800°C (vacuum/inert) |
| Rod Diameter | 6mm to 50mm (custom) |
| Length | 100mm to 2000mm (custom) |
| Resistance Tolerance | ±10% |
Applications
- Vacuum brazing furnaces
- Vacuum sintering furnaces (ceramic, powder metallurgy)
- Crystal growth furnaces (silicon, sapphire)
- Heat treatment furnaces (bright annealing, hardening)
- CVD furnace heating
- Research and lab high-temperature furnaces
Why Choose Jincheng Graphite?
- 40+ years of graphite heating element manufacturing
- Precision machined for perfect fit in your furnace
- Consistent resistivity for uniform temperature distribution
- Replacement elements for all major furnace brands
- Custom geometries (rods, strips, grids, U-shapes)
- Competitive pricing compared to OEM parts
- Fast delivery for furnace maintenance needs
- Quality testing with resistivity measurement
FAQ
Q: How long do graphite heating elements last in vacuum furnaces?
A: Typical service life is 2-5 years depending on operating temperature, atmosphere, and furnace cycle conditions. Graphite elements are consumed slowly through sublimation at high temperatures, and life can be extended by proper vacuum/inert atmosphere control.
Q: Can you produce custom-shaped heating elements?
A: Yes, we manufacture custom graphite heating elements including U-shapes, serpentine strips, grid heaters, and complex geometries based on your furnace design or original drawings. Please provide your design for quotation.
Q: Do you offer replacement elements for specific furnace brands?
A: Yes, we supply replacement graphite heating elements for most major vacuum furnace brands including Ipsen, Centorr, Seco/Warwick, PVA, and many others. Please provide your furnace model or original part number for matching.
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