Cartridge Heater

Cartridge heaters are used for heating molds and metal blocks that require high heat density. They are preferred in many applications such as cutting, sealing, and forming materials. There are two main production types: Rolled Cartridge Heaters and Wound Cartridge Heaters. The maximum power load for wound types is 5 W/cm², while rolled types can reach up to 25 W/cm².

Wound Cartridge Heaters:
In this type, resistance wires are wound through special ceramic cores at the maximum possible length, and the remaining space between the wire and the outer surface is filled with magnesium oxide powder for insulation and heat transfer.

Rolled Cartridge Heaters:
The production process of rolled cartridge heaters differs significantly from wound types. The resistance wire is wound at fixed intervals around high-purity magnesium oxide cores that can withstand high temperatures. The heating core is then connected to power leads and centered inside a stainless-steel tube. The remaining gaps are filled with special magnesium oxide powder for insulation and heat transfer. Finally, the assembly is compressed through a rolling process to achieve the desired dimensions. This method allows for higher watt densities even in small diameters and lengths.

For long-lasting and efficient operation, please pay attention to correct diameter measurement and operating conditions when placing your orders. You can follow our regularly published blog posts for detailed technical guidance.