Cartridge heaters are essential components used in many industrial applications to generate precise heat. These small yet powerful devices are designed to provide a high level of efficiency and accuracy in heating processes. Cartridge heaters are typically inserted into drilled holes within metal blocks, molds, or other surfaces, making them ideal for applications that require concentrated and localized heating. Their compact size and versatility make them a valuable tool in industries such as plastics, packaging, food processing, and even semiconductor manufacturing.

    What Are Cartridge Heaters?

    A cartridge heater is a cylindrical heating element that consists of a metal sheath (usually stainless steel) that encases a resistance wire. This wire is wound in a coil and then surrounded by a magnesium oxide powder that acts as an insulator. The element is designed to heat up when electricity flows through it, transferring heat to the surface it is inserted into. The temperature of the heater can be precisely controlled, which is one of the reasons they are highly sought after in industries that rely on temperature accuracy.