Product Profile of Bolthole Heaters

Industrials Heators offers Bolthole Heater. Industrials Heators supplies wide ranges of cable and sleeves, heating elements, Ceramic insulators, synthetic sheets and furnace elements. Bolthole Heater is applicable when inserted into a hollow bolt, the transferred heat causes the bolt to expand and increase in length, allowing the nut to be further wrenched tightened.

Bolthole Heater has the following features:

• Sheathed in stainless steel the heaters constructed having a recommended minimum 100 mm cold zone separating the heated zone from the junction box and handle.

• The element is of the compacted variety, allowing high watts density and long service life.


Bolthole Heater is suited for:

• When the heater is removed the bolt cools and contracts, drawing down further the previously tightened nut. The higher the wattage the faster the expansion.

• Used in widely on studs and holding bolts on large equipments such as steam generators, turbines and pressure vessels.