HMX series is the optimal choice for heating nozzles in hot runner systems: one HMC microtubular heater is wrapped around a thin-walled precision bushing and fitted inside a special groove on the bushing itself. It is the suitable method for heating metal masses with cylindrical cross-section. The bushing is normally made of brass. The profile of the groove as well as the power distribution are made according to customer specifications. The HMX series is also available with built-in thermocouple, type J or K.