High Watt Density Cartridge Heater

A piece of equipment known as an electric heater cartridge is made of MgO powder or MgO tube, a ceramic cap, resistance wire (NiCr2080), high-temperature leads, and a seamless stainless steel sheath (304,321,316,800,840). typically in the form of a tube that is inserted through a series of drilled holes into metal blocks for heating purposes. There are two basic types of cartridge heaters: high density and low density.

The heating part of the core of the cartridge heater is a nickel-chromium heat-resistant alloy wire, which is wound on a magnesium oxide core rod with excellent insulation and thermal conductivity. The heating wire and the shell are filled with magnesium oxide powder as an insulating material, and the air inside is compressed by the machine to make it into a whole.
After the main body of the cartridge heater is completed, the fixing piece or thread can be installed according to the installation needs. The thread structure of the fixing piece is related to the heating tube installation method.