The bolt heating rod with aviation plug electric heating tube is mainly composed of high-resistance alloy heating elements, stainless steel protective sheath, etc., specially used for heating hollow bolts of steam turbines and other large machinery during installation and removal. When in use, insert the heater (rod) into the bolt hole, heat the bolt to expand it, facilitating disassembly and tightening of the nut. It features fast heating and easy operation.



Steam Turbine Bolt Heating Rod


III. Reference Specifications


No. Electric Heater Model Heated Bolt Diameter  Protective Tube Length L Heating Length I1 Cold End Length I2 Power W
1 DJ22-1 M56×4 255 100 125 550
2 DJ22-2   280 126   700
3 DJ22-3   305 150   900