High temperature process heat is a fundamental tool in Industrial America’s toolbox. While some operations are accomplished in a static air environment, many high temperature operations — heat treating and stress relieving, for instance — require convection to achieve the necessary results. In such cases, high temperature industrial fans are used to circulate heated air within the chamber to achieve predictable, close-tolerance results.
Regardless of the operating temperature, every industrial fan is subject to fatigue and, therefore, has a finite life. (Defined as the weakening of a material caused by repeatedly applied or cyclical loads, fatigue is progressive, localized structural damage.) The normal life of an industrial fan can be cut short by use in an improper application or inadequate maintenance, resulting in catastrophic failure.