Tempsens offers Ceramic Bobbin Heaters are fabricated from high-temperature factory insulators in various diameters and lengths for any voltage or wattage within manufacturing limits. Bobbin heaters are made with sheathed and without sheathed material.
The sheath material ranges from nickel-plated mild steel, Inconel alloys, and stainless steel. Resistance wires are supported on refractory insulators and connected to a terminal block at one end. Thermowell can be provided for accurate temperature sensing or other controls can be provided as well. They are normally manufactured for horizontal mounting but may be specially designed and constructed for vertical installation.
Designed for any voltage or wattage within manufacturing limits. These Bobbin Heaters consist of elements, which are exposed partially in the air for better transmission of heat. Also, when it is inserted into a radiant/immersion tube, it offers a large heated area for the liquid or semi-solid to be heated.
Advantages
Application Areas
Up to 600°C
Ferritic alloys wire mara FeCrAl and non-ferritic wire NiCr 80-20, NiCr 70-30
Standard: 25,30,36,42,45,57,93 other customize size available
1 to 10 W/cm2
Up to 12kW
Customized – power rating, voltage, resistance, length, diameter, and other dimensions
Stainless Steel SS Grade, Incoloy, Cast Alloys
1.5 to 3mm
300 to 2800mm customize
MS, IP54 standard, IP66 waterproof terminal box
Thermocouple, RTD, Thermostat for temperature control
Construction
1. Refractory Ceramic Blocks assembled together to the required length.
2. The Nichrome Resistance Wire heating element is inserted into the ceramic blocks for maximum life, evenly wound for even heat distribution.