WSME-500 inverter AC/DC TIG welding machine WSME-500 inverter welder WSME-500 inverter welding WSME-500 is IGBT control WSME-500 is special welding alumunium. Technical data: Rated input voltage: AC380±10%/50Hz Rated input capacity:18.2 Rated input current(A): 29.7 Output current range(A): 20-500 No-loas voltage(V):78 Pre-flow time(S):0-2 Pulse on ratio(%):20-80 Pulse Frequency:0.2-15 Down slope time(S):0-5 Post-flow time(S):1-8 Arc-starting: High frequency Efficiency(%):85 Duty cycle(%):60 Power factor:0.93 Insulation class:F Protection class:IP21 Product Characteristics: 1, quality square wave power,steady arc,no need to stabilize arc with high frequency continuously. 2, stable arc,centralized heating,easy to fill the wire,easy to operate. 3, clear width of the continuously adjustable,clear and strong oxide film,beautiful bright weld. 4, high duty cycle,suitable for long weld at heavy current. 5, with function of AC/DC or MMA/TIG or Constant Current/Pulse. 6, specially welding for aluminum,aluminum alloy,carbon steel,stainless steel and metallic materials.