... saving, energy conservation, low cost 4.small deformation. induction heating machine,heat treatment,heating equipment,heating furnace,heating.1. Heat ... wheel, valve, ball pin , Etc. and hardening of large size machine tool guideways and Ductile cast iron.4.Welding, Welding head ... 380V 50-60HZ Oscillation frequency :15-35KHZ Size: main 600 × 480 × 1360mm At 500 × 800 × 580mm induction heating machine