Bolt heaters are used to pre heat large, hollow holding bolts or studs. These heaters are used as an aid to tighten large bolts in heavy machinery, servicing of hydraulic presses, compressors, die blocks, steam or pressure vessels and other equipment. A high concentration of heat is needed to expand both allowing further tightening of the nut. As the bolt cools and contracts it results in the nut being drawn even tighter. Bolt heater is specifically designed to provide with close tolerance fits, watt densities of 100 watts per square inch. Which is almost 65% higher than standard cartridge or tubular heating elements can deliver. Bolt heaters provide quicker heat up time and minimum heat loss to the area surrounding the bolt.

DIMENTIONS IN INCHES