Stress Relief Furnaces

HeatTek offers a variety of Stress Relief Furnaces that include Car Furnaces, Drop- Bottom Furnaces, Continuous Belt Furnaces, Box Furnaces and Tip-Up Furnaces.  HeatTek designs include heavy structural steel outer shell and frames, insulation designed for the specified operating temperatures, burners designed for optimal heating and uniformity and fans (when used) designed for optimal delivery of the heat to the product load.   Operating temperature ranges extend to 2100°F.   All furnaces feature PLC control with an HMI operator screen and can be designed to communicate with plant SCADA (supervisory control and data acquisition) systems. 

Stress Relief Furnaces Applications

Our industrial stress relief furnace can also be used in many applications including stress-relieving (normalizing), tempering, preheating, and annealing.  Our furnaces can be found in the gas/oil, steel, heat-treating, aerospace, and automotive industries for processing steel, aluminum, titanium, and various alloy products.

Stress Relief Furnace Process

The process of stress-relieving consists of heating the product to a temperature below the critical range which relieves residual stresses that have developed during forming processes.  HeatTek furnaces are designed to meet these conditions and in the event of higher temperature applications – designs changes are made to meet the specific heat treat temperature range.  Gas fired burners and electric heating systems are offered based on the power requirements and product load.  HeatTek furnaces are available with single/multi-zone control, gas fired or electrically heated and inert atmosphere capability.

HeatTek furnaces are designed, built and tested in our modern 70,000 sq/ft manufacturing facility in Ixonia, WI. Our fully trained and qualified service technicians startup and certify the furnaces to meet national and industrial standards.  These include NFPA, NEC, UL, CE and aerospace standards (BAC-5621 and NADCAP AMS-2750E). 

Aftermarket Services & Spare Parts

We provide aftermarket services and spare parts for all industrial stress relief furnaces. We offer a reliable source of high-quality replacement parts and components for industrial stress relief furnaces manufactured by HeatTek and other manufacturers. Through our extensive industry experience, we understand the importance of repairing your equipment as fast as possible to minimize production downtown and our dedicated spare parts team is ready to help you.

Types of Spare Parts include:

  • Combustion components, including burners, flame rods, regulators, igniters and pressure switches
  • Conveyors, chain, fixtures, and tooling
  • Electrical components, including fuses, relays, switches and controllers
  • Drives, motors and transmissions
  • Fans, blowers and air kits
  • Pumps, valves, nozzles and pipe fittings
  • Replacement insulation and panels