The Hi-Density Miniature Cartridge Heater is designed for precision heating where space is limited. Its compact dimensions allow for lower internal temperatures and quicker thermal response. Advanced swaged construction ensures higher watt density, stable performance at elevated operating temperatures, and longer service life. Available in three common diameters — 1/8″ (3.2 mm), 5/32″ (4.0 mm), and 3/16″ (4.8 mm) — it is widely used in molds, medical devices, laboratory instruments, and compact industrial equipment.