High-temperature electric heaters are made of stainless steel with materials of 304 and 316L, utilizing the principle of heat release from high-temperature resistive wires.

High-temperature electric heaters uniformly distribute high-temperature resistance wires within a seamless stainless steel tube, densely filling the gaps with crystalline magnesium oxide powder that excels in thermal conductivity and insulation properties. This design boasts high thermal efficiency and even heat distribution. When an electric current passes through the high-temperature resistance wires, the heat is diffused through the magnesium oxide powder to the surface of the metal tube, then transferred to the heated object or air, achieving the heating purpose.