Single Arch Tungsten Heater
Single arch tungsten heater, referred to as single peak tungsten heater, is the most frequently utilized resistance evaporation heating source in vacuum thermal evaporation coating equipment. Manufactured from high-purity tungsten wire or potassium-doped tungsten wire, tungsten heater features a central raised single-arch structure formed through multi-strand twisting and precision shaping processes. The configuration creates a stable heat concentration zone in the heating area to carry or hang deposition materials such as aluminum, gold, silver, and chromium, thereby achieving stable evaporation and uniform thin-film deposition.
Single arch tungsten heater possesses the following characteristics:
(1) Concentrated heat: High heat flux density in the evaporation zone ensures more stable evaporation efficiency.
(2) Uniform thermal field: Stable structure leads to excellent consistency in film layer deposition.
(3) High-temperature deformation resistance: Exceptional structural integrity is maintained even under elevated temperature conditions.
(4) Extended operational life: Suitable for continuous coating processes and high-load operating conditions.
(5) Stable material properties: With a melting point of approximately 3,422°C, tungsten provides excellent creep resistance and structural stability at high temperatures.
(6) Low contamination: Extremely low vapor pressure minimizes the risk of volatilization contamination to the vacuum environment at high temperatures.
(7) Operating temperature range: Reliable long-term operation within a temperature span of 1,800°C to 2,600°C.
Capable of achieving rapid heating, stable evaporation rates, and excellent film uniformity to enhance coating quality and production efficiency, single arch tungsten heater is widely applied in automotive lamp vacuum aluminizing, optical lens anti-reflective coating preparation, consumer electronics housing metallization, precision decorative coating, semiconductor electrode preparation, and solar thin-film deposition processes.
Specifications of CTIA single arch tungsten heater:
(1) Purity: W ≥ 99.95%
(2) Wire diameter: 0.5~1.2 mm, customizable
(3) Stranded configuration: Two-strand, three-strand, or multi-strand
(4) Typical dimensions (Width × Height × Leg length, mm)
Small: 30–40 × 18–25 × 40–60
Medium: 45–55 × 28–35 × 70–90
Large: 60–120 × 35–50 × 80–150 (Customizable)
(5) Surface treatment: Ultrasonic cleaning, chemical cleaning, or electropolishing
Leveraging over three decades of manufacturing expertise in tungsten heater, CTIA GROUP delivers optimized, custom-engineered designs tailored to specific operating temperatures, power requirements, and thermal field structures. Precision-controlled wire twisting, vacuum annealing, and advanced surface cleaning guarantee good component consistency and cleanliness. Through the exact customization of wire gauges, stranding patterns, peak dimensions, and specialized surface treatments, these tailored solutions optimize process efficiency within high-temperature vacuum systems.
For any inquiry, please contact?tungsten heater manufacturer: CTIA GROUP
Email: sales@chinatungsten.com
Tel: 0086 592 5129696 / 0086 592 5129595
Website: m.baixiaosheng123.com
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4. Stranded tungsten wire for making tungsten heater