... . Advantages:1) Adopting IGBT solid state inverter technology, high efficiency and energy saving, large output power2) 100% load duration ... as gas, oxygen, acetylene, coking coal, electric furnace, high frequency tube etc.),the thermal efficiency 0f 95%, low consumption 7 ... quenching, work piece forging, blankTemperature protection 50 degrees High Frequency drill bit and splined shaft quenching 80KW