... service life High Frequency Induction Heating Machine ModelOscillationpowerOscillation circuitOscillationfrequencyOscillating tubeMax.Workpiece dimension(mm) ... tools, machine tool guideway, electric, hydraulic, pneumatic components, and other machinery and metal parts surface, hole ... Large gear points tooth quenching, wheel, large shaft parts outside surface section, continuous quenching, etc2.Steel, ...