|Minimum Order Quantity||12 Number|
A designed Tubular Heater coil of Nickel-Chromium alloy resistance wire with the ration of 80%-20% is welded to nickel-coated steel terminated cold pin. Once this tubular heater coil assembly is stretched and centered in the tubular heater element sheath, then the coil is filled with MgO (Magnesium Oxide) powder. Tubular heaters are the widely used tubular heaters in many commercial, industrial and scientific applications. The Tubular heater can be formed in any shape and cast into elements. Once the coil is filled with MgO powder, it is then compacted to permanently stabilize the coil in the center of the tube.
Ultimately, a good quality of tubular heater provides excellent rapid heat transfer, dielectric strength between coil and sheath, durability with an industry resistance tolerance of -5%,+10% which reciprocate and translate to wattage resistance tolerance of -10%,+5%. Length tolerance of tubular heater is +/- 1% with available customized diameter of tolerance +/- 1%.
We are one of the Leading Tubular Heater Manufacturers, Heating Coil Manufacturers.