Basic structure of the cartridge heater
Compression type heater with ceramic core of high temperature property wrapped with Nickel-chrome wires and isolated by magnesium oxide.
1. Stainless Steel Sheath (Incoloy for High Temperature Type)
2. Heating Coil (Nickel-chrome Wire)
3. Insulation Powder (Magnesium Oxide)
4. Ceramic Core
5. Silicon (Insulation) Tube
6. Crimp Terminal
7. Lead Wire Film
8. Nickel Pin
*O.D. of Lead Wire is approximately in the range of Ø2~Ø4, depending on the voltage and the amount of electric power.