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Coiled Nozzle Heaters

Coil Heater

Watlow Pre-coiled Nozzle Heater

The Watlow pre-coiled, cable nozzle heater has been formed into a compact, tightly wound coil to supply 360 degrees of heat. This nozzle heater features a 5 in. (127 mm) long, no-heat tail section, which eliminates failures in the adapter area due to overheating.

This cable nozzle heater is manufactured with Watlow's swaged compaction process. This process provides a greater compaction of the MgO insulation than the competitor's rolling process. Compacting MgO insulation into a solid mass results in excellent heat conductivity and high dielectric strength.

Mightyband™ Coil Heaters by Tempco

Mightyband heaters lend themselves to a wide range of applications. The flexibility of mineral insulated cable allows the Mightyband heater to be coiled, formed, wrapped around pipes or used straight. It can also be cast-in to metal or welded onto machine component parts. Open wound coil heaters can be used as cartridge heaters in irregular size holes.

Tempco offers from stock a large selection of standard Mightyband coil heaters for plastic injection runnerless molding bushings and for internally heated injection machine nozzles. The inside diameter of a coiled heater is wound undersized for a screw-on fit. Therefore, holddown straps are not usually required.