Preheating between 482 to 649°C is recommended before heating parts above 704°C if the parts have been previously hardened to 35 Rc / 345 HV 10 or greater or if the geometry of the part may produce excessive stresses during heat up.

When preheating parts above 300°C, a protective atmosphere is recommended to reduce surface oxidation. Air, without a protective atmosphere, is acceptable when preheating parts below 300°C.

Pre Heating Furnaces by Therelek

Chamber Furnace

Therelek’s chamber furnace can operate up to 1800°C. These furnaces are usually rugged, refractory based construction

Chamber Furnace

Continuous Mesh Belt Furnace

A multi-zone control environment is present in a continuous high-temperature furnace, often with a single pre-heating zone.

Continuous Mesh Belt Furnace

Bogie Hearth Furnace

Our standard bogie hearth furnace goes up to 1500°C, however, we make custom designed furnaces for any special requirements.

Bogie Hearth Furnace

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