... heater with IGBT system.superaudio induction heating machine. Main characteristics:Max input power frequency:80KWFrequency ... with the help of punch press, forging machine or other equipments, for instances, hot extrusion ... , such as crankshaft, connecting rod, piston pin, chain wheel, aluminum wheel, valve, rock arm shaft, ... such as gear and axes.4. Quench for machine tools, such as lathe deck and guide ...