1.Adopt advanceddigitallIGBTinvertertechnology. The build-inmicroprocessorcan manipulate weldingaccurately,easilyandefficiently. Softwarecanbeupgradeandcooperatewithautomaticweldingmachinery;2.Simplified user interface is easily to be used and the direct viewing digital monitor distinctly shows the functions. 3. Ten welding prameter datas can be stored in the bulit-in microprocessor. Differentweldingtechnologicalparameterscanbeloadedeasily; 4.Meet the demands of DC TIG, pulse DC TIG,MMA welding; 5.Can be used forthe stainlesssteel,carbonsteel,copperandtitaniumSpecificationUnitWS-500DRated primary voltageVThree-phase 380FrequencyHz50/60Rated primary inputKVA18Output current rangeA20-500Max no-load voltageV70Rated duty cycle%60Crater controlON / OFF / RepeatGas post-flow times1-25Pulse frequencyHz0.1-500Overall dimensionsmm570×310×630Weightkg49