Cartridge heater is one of the tubular heating elements. The heating part is a nickel-chromium heat-resistant alloy wire wound on a magnesium oxide core rod with excellent insulation and thermal conductivity. Between the heating wire and the outer sheath is high-purity magnesium oxide powder as an insulating material, and the air inside is compressed by the machine Into a cartridge heater. After the main body of the cartridge heater is completed, fixed accessories or threads can be installed according to customer needs. There are many types of fixed accessories or thread structures. Please contact our sales or technical personnel for the best solution. Advantages: Small diameter, can be 3-35mm; The length is not limited, it can be 20-2000mm; The power is high, which is 2-5 times the power of the normal electric heating tube, and it can achieve a surface area of 20 watts/square centimeter; even a surface area of 60 watts/square centimeter; It has the characteristics of simple structure, high mechanical strength, high thermal efficiency, safety and reliability, easy installation, long service life, no pollution, and low price. It also saves electricity, is safe to use, can be bent into various shapes, is light, and is easy to disassemble.