... KX-5188A18Input voltage One-phase 220V 50HZOutput oscillation frequency 100-200KHZ Standard output power 18KW Cooling water flow 0.2Mpa ≥ ... the type .2.the heat treatment ( Chang to High frequency first) Various hardware tool, electricity-moves components, liquid-presses ... proceeds the heat treatment.3.WELD,DRILL (change to high frequency) Carbide cutting tools weld, for example: Tuning tool, ...