... kechuang high frequency machine XG-18B: Input power18KVAInput voltage220V 50HZMax input current single phase40AOscillating frequency20-100KHZInverted power≤18VAWater pressure0. ... parts,hardware tools,gears,chaim wheels,and other machine attachments quenching for parts or whole body. ... ,the power can infinitely variable control. (4).Special cycle cooling system,make sure the machine work continuously ...