heat treating machine is the controlled heating and cooling of a metal or ... as crank axles, tie rod, gudgeon pin, chain wheel, aluminium wheels, air door, ocher-arm shaft,drive half shaft, mall shaft ... of power tool. Such as gear,alex center4. Machine tool bed surface,machine tool guideways,etc hardening. Hardening features:1.adopt IGBT ... control,the quality of process is high. heat treating machine