CTIA's Tungsten Heater in Vacuum Furnace
CTIA’s tungsten heater is an essential heating component in vacuum furnace equipment, fabricated from high-purity tungsten wire or doped tungsten wire through precision stranding, winding, pressing forming, and surface treatment processes. Tungsten heater is widely applied in vacuum sintering, vacuum brazing, precision heat treatment, and sapphire growth requiring stable high-temperature operation environments.
Tungsten heater operates in vacuum high-temperature environments where material selection directly determines thermal field performance and equipment stability. CTIA's tungsten heater has the following characteristics:
（1）High Temperature Resistance
Tungsten heater, with a melting point of about 3410℃, maintains structural stability under extreme temperature conditions and supports long service life requirements.
（2）Low Evaporation
Tungsten heater shows low vapor pressure in high vacuum environments, reducing material loss and preventing contamination of processed components by metal vapor.
（3）High Stability
Low thermal expansion coefficient combined with excellent thermal conductivity enables tungsten heater to maintain structural integrity during repeated heating and cooling cycles, reducing fracture risk.
（4）High Efficiency
Optimized resistance design improves thermal radiation efficiency, enabling uniform temperature distribution inside the furnace and stable heating performance.
CTIA GROUP provides diversified structural solutions for tungsten heater in vacuum furnace according to different equipment power levels and thermal field layouts:
（1）Material
Pure tungsten wire or doped tungsten wire (non-sag tungsten wire) are available to meet different operating temperature and service life requirements.
（2）Stranding Method
Single strand, 2-strand, 3-strand, 4-strand, and 6-strand structures are available. Wire diameter ranges from 0.2mm to 1.2mm. Multi strand structures improve mechanical strength and current carrying capacity.
（3）Geometric Shape
Tungsten heater can be processed into spiral, U-frame, funnel, wave, and other customized shapes to ensure precise matching with electrodes and internal supports of the vacuum chamber.
Tungsten heater provides stable thermal performance in vacuum heat treatment furnaces, sapphire growth furnaces, and semiconductor processing equipment.
CTIA GROUP has been deeply engaged in the tungsten heater field for more than 30 years and provides systematic optimization design services based on customer application scenarios and furnace chamber structures. Design parameters include tungsten wire diameter, doping type and content, structural configuration, effective heating length, and lead wire structure. Surface treatment processes such as electrolytic polishing and alkali cleaning are available to enhance surface quality and performance stability. CTIA delivers full-process customization covering material selection, structural design, and precision manufacturing.
For any inquiry, please contact tungsten heater manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: www.tungsten.com.cn
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1.Tungsten heater quotation table
2. Catalog of tungsten heater
3. Tungsten heater models
4. Stranded tungsten wire for making tungsten heater