TIG/MMA machine has the permanently current characteristic, welding current doesn't vary with arc length,we supply many kind of Welding machine, Such as MMA Welding machine, battery charger, welding machine, cut TIG welding machine, MIG MAG LGK welding machine.Model: CF-WM004ITEMWM004-250WM004-315WM003-180Power voltage(V)AC3-380V±15% 50HzAC3-380V±15% 50HzAC3-380V±15% 50HzRated input capacity(KVA)10.412.118Rated input current(A)15.718.327.3Rated output(A/V)250A/30V315A/32.6V400A/36VOutput current range(A)30-25030-31530-400No-load voltage(V)757575Duty cycle(%)606060Efficiency(%)858585Power factor0.850.850.85Insulation classFFFProtect classIP21SIP21SIP21SUsable electrode(mm)2.0-5.02.0-5.02.0-10.0Dimension(mm)520*275*410520*275*410510*330*450Weight(kg)22.52324.5Strength:1.Use power IGBT switches and advanced invert control technology.2.Single phase, portable, fan-cooled, MMA invert welding, in this welding. Process, an electric arc is created between a coated consumable electrode and the work piece to be welding,causing the parent material to be fused together and the electrode to be melt.3.Compact and portable are applicable to the spring loader, repair or field operation.4.Easy to arc initiation, resistance to interference,good force adjustment.5.Protection for over voltage, over current.