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The ProHeat 35 gives Pride of the Hills the control to ramp up the temperature as fast or as slow as dictated by the code. Having that control, and being able to document the process through a digital recorder, is important to the quality control process and, ultimately, in documenting to the customer that the part was fabricated properly.

The company was introduced to the induction heating process as made possible by the Miller ProHeat™ 35 induction heating system. With an induction heating system, heat is created electromagnetically in the part by placing it in an alternating magnetic field created by liquid-cooled induction heating cables. The induction cables are wrapped around the part, or on the part, and do not heat up themselves, but create eddy currents inside the part that generate heat.

Pride of the Hills has taken welding processes conventional by industry standards (TIG root, Stick hot and cover passes) and changed them to solid wire MIG applications (Regulated Metal Deposition (RMD™) and Pulsed MIG) to significantly increase production and meet customer demand. 

Using RMD and Pulsed MIG as oppsosed to conventional methods, Pride of the Hills has taken a 2-hour welding process down to 20 minutes and reduced test failure rates on its sand separators down to almost zero. On a macro scale, it means producing an entire system from scratch in the time it previously took just to do the welding.