Watt-Flex split-sheath cartridge heaters from Dalton Electric Heating Co. Inc. deliver full heat to the tip, minimizing gate freeze-off during injection molding.
Because of their continuous-resistance coil, Watt-Flex heaters also can be zoned to create custom temperature profiles. By stretching or condensing the coil, the Ipswich, Mass., company can make the heaters to deliver differing amounts of heat at various points along their sheath.
The heaters can be made with a groove along the exterior cartridge sheath to accommodate a needle-type thermocouple.
Tel. (978) 356-9844, fax (978) 356-9846, e-mail [email protected] electric.com.