Features of SMAW GTAW inverter dc tig welding machinery WS-200: 1.Advanced MOSFET inverter technology, stable current, low noise, high working efficiency; 2.Compact structure, convenient for carry, reliable and durable, easy for maintenance; 3.Thermostatic protection, over-voltage protection, over-current protection, under-voltage protection, suitable for filler wire welder; 4.For WS-160, WS-200, we also can provide 110/220 v duel voltage input function, automatic input voltage shift; 5.High welding speed, little spatter, excellent weld appearance; 6.Suitable for MMA and TIG welder, applicable for stainless steel plate; 7.Complete accessories: welding torch, welding holder, earth clamp, etc. Parameters of SMAW GTAW inverter dc tig welding machinery WS-200: ModelSpec. WS-200Power supply voltage AC 220±10% V / 50 60 Hz Power supply capacity 4.6 kVADuty cycle 60%Rated output current (ARC) 155 ARated output current (TIG) 200 ANo-load voltage 56 VOutput current range (ARC) 5-155 AOutput current range (TIG) 10-200 APost-flow time 0.5-15 sCosφ (η) 0.93Protection grade IP 21Weight 9.6 kgDimensions (mm) 385*155*295