The bolt heating rod with aviation plug is an electric heating tube mainly composed of high-resistance alloy heating elements and stainless steel protective sleeves. It is 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, and the bolt expands due to heating, making it easier to loosen or tighten 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
 
850