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          MMA Welder
           Product Description :
          Product features
          1.Advanced full bridge soft-switching inversion technology and IGBT power switch part manufacturing, as well as high efficiency and energy conservation;
          2.With pulse-width modulation technology, maximum inversion frequency 20kHz, quick dynamic response speed, smooth electric arc, excellent welding property and perfect welding joint;
          3.Digital display of current and voltage, direct viewing and convenient operation, current presetting function;
          4.Adjustable striking current, reliable ark striking and convenient operation without welding rod sticking;
          5.Circuit adjustment based on electric arc drive, electric arc property adjustment according to welding process, stable welding process with unapparent splashing;
          6.Protective function, such as overheat and over-current to ensure safe operation;
          Application:
          1.weld stainless steel, carbon steel, cast iron ,steel and other alloy material
          2.Widely used in machinery, petroleum, chemical, shipbuilding, vehicles, electric power construction, etc .
          Technical Data
          Model
          ZX7-400
          ZX7-500
          ZX7-630
          Parameters
          Rated input voltage (V)
          Three-phase 380V ±10% 50Hz
          Three-phase 380V ±10% 50Hz
          Three-phase 380V ±10% 50Hz
          Rated input power ( kVA)
          18
          25
          35
          Floating voltage(V)
          73
          73
          73
          Adjusting range of welding current (A)
          40-400
          50-500
          60-630
          Rated duty cycle (%)
          60
          60
          60
          Grade of casing protection
          IP21S
          IP21S
          IP21S
          Class of insulation
          F
          F
          F
          Overall dimensions (W*D*H)mm
          320*625*535
          320*625*535
          320*625*615
          Weight (kg)
          45
          48
          52
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