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Electric Thread Screw Cartridge Heater Bayonet Heating Element

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Product Description

Bayonet heating element  is constructed using several refractory ceramic blocks assembled together to the required length. The Nichrome wire heating element is inserted into the ceramic blocks, with a terminal block at one end.


This bayonet   assembly is then inserted into  a pre-assembled special protection tube, when used in liquid immersion and gas application.  However, bayonet  heaters can also be used in direct air-heating application without the protection tube.




Offers a large area to heat liquids or semi-solid materials like wax, fats, oil and bitumen.

Suitable for indirect heating of gases and liquids, where it is inserted into a pocket or protection tube in the process tank, wherein, it can be repaired or replaced without draining the process tank.

Wide range of lengths, voltages and power is available to meet customers’ specific requirement.



Simple and low-cost installation

Ease of maintenance and repair

Energy efficient as 100% of heat generated is within the solution



All bayonet heaters are custom-made, and the power ratings are according to the length of the bayonet  shown in the table below .


Both Ø29mm and Ø32mm bayonet will fit into a 1 ½ inch (Ø38mm) metal protection sheath.

The  Ø45mm bayonet  will fit into a 2 inch (Ø51.8mm) metal protection sheath.

Infrared heater bayonet heating element
Insulation Nickel Chrome resistance wire
Heating wire NiCr 80/20 wire, FeCrAl wire
Voltage 12V-480V or as customer’s demand
Power 100w-10000w based on your length
High temperature 1200-1400 degree celsius
Corrosion preventive Yes
Material Ceramic and Stainless Steel



As per customer requirement, the bayonet  heater can be supplied with suitable mildsteel or stainless steel sheath pocket, and mounting flanges , either 1 ½ “ BSP or 2” BSP. It is suitable for both horizontal and vertical installation.

Company Profile 

Shanghai Tankii Alloy Material Co., Ltd. Focus on the production of resistance alloy(nichrome Alloy, FeCrAl Alloy, copper nickel alloy, thermocouple wire, precision alloy and thermal spray alloy in the form of wire, sheet, tape, strip, rod and plate. We’ve already got ISO9001 quality system certificate and approval of ISO14001 environmental protection system. We own a complete set of advanced production flow of refining, cold reduction, drawing and heat treating etc. We also proudly have independent R&D capacity.

Shanghai Tankii Alloy Material Co., Ltd has accumulated lots of experiences over 35 years in this field. During these years, more than 60 management elites and high science and technology talents were employed. They participated in every walk of the company life, which make our company keep blooming and invincible in the competitive market. Based on the principle of “first quality, sincere service”, our managing ideology is pursuing technology innovation and creating the top brand in the alloy field. We persist in Quality – the foundation of the survival. It is our forever ideology to serve you with full heart and soul. We committed to provide customers all over the world with high-quality, competitive products and perfect service.

Our products, such us nichrome alloy, precision alloy, thermocouple wire, fecral alloy, copper nickel alloy, thermal spray alloy have been exported to over 60 countries in the world. We are willing to establish strong and long-time partnership with our customers. Most complete range of products dedicated to Resistance, Thermocouple and Furnace manufacturers Quality with end to end production control Technical support and Customer Service.

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