... % compared with resistive heating method or more, shorter warming time for 6min. 2, reliable operation Intelligent multi-loop control system and ... temperatures above 600 °C. Application: 1.Auto parts:Piston Rod, Gear, CAM, Brake Shoe, Transmission Rod, Steering Wheel quenching etc. 2 ... quench nut forging Temperature protection 50 degrees induction heat equipment for gear hardening