Tempco Electric Heater Corp. HDC19102 M21-21 Cartridge Heater

The TEMPCO HDC19102 M21-21 Swaged Cartridge Heater delivers concentrated electric resistance heat directly into metal tooling with a 50 W rating at 120 VAC. Its 1/8 in diameter and 1-1/4 in length, housed in a 321 stainless steel sheath with a 10 in lead, enables precision bore installations in confined spaces across molds, dies, sealing equipment, packaging machinery, and plastic processing systems. The swaged high-density construction provides efficient heat transfer, rapid thermal response, and long service life when used in precision bores. With a watt density of 180 W/in² and a maximum temperature capability of 1,400°F (760°C), it supports plastic molding, packaging, hot stamping, food processing, and general manufacturing equipment. Maintenance teams and automation engineers rely on it for repair, retrofit, expansion, or replacement of worn cartridge heaters, and it is a common TEMPCO replacement in the HDC series and M21-21 configurations.