Double Spiral Tungsten Heater
A double spiral tungsten heater is a dual-layer tungsten heating element developed from a single spiral configuration. It is precision-wound from high-purity tungsten wire (≥99.95%) or doped tungsten wire. This structure provides anti-sag performance and high-temperature strength, maintaining geometric stability in vacuum environments exceeding 2000°C. Tungsten heater also exhibits low vapor pressure characteristics, making it suitable for metal evaporation and related thermal processes.
Compared with single spiral tungsten heater, the double spiral tungsten heater provides a balanced distribution of electrical resistance and thermal output, which reduces localized overheating and stabilizes the heating process. The dual-layer structure assists in distributing thermal stress, minimizing deformation or structural collapse during high-temperature operation. And it is intended to improve structural integrity and operational life under repeated thermal cycling conditions.
Double spiral tungsten heaters are utilized in optical coating, semiconductor precision heating, vacuum evaporation sources, and localized high-temperature applications. They are applicable for processes requiring thermal uniformity and operational stability. The basic information of CTIA’s double spiral tungsten heater as follows:
Based on over 30 years of experience in tungsten heater fabrication, CTIA GROUP provides technical solutions for design and manufacturing by calibrating parameters such as wire diameter, strand count, spiral diameter, pitch, turn count, and overall length to match specific application scenarios, thermal zone requirements, and power specifications. Through the integration of surface treatments like electrolytic polishing and chemical cleaning, CTIA GROUP manages the entire transition from metallurgical selection and structural design to the delivery of precision-manufactured products.
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