Inversion Hand arc Welding Machine Series ★With voltage fluctuations automatic compensation capacity, strong resistant fluctuation and the welding current is stable. ★With overpressure, over current and superheat protection function. ★Good thrust compensation and good dynamic characteristic, small splash and high efficiency and welding line appearance is very beautiful. ★Through PWM can be output high DC power, stable performance, small size, light weight and high efficiency, its efficiency is 30% higher than traditional welding machine. ★Current continuous adjustable and easy to use ★Be suitable for all kinds of acidic & alkaline welding operation Model ZX7-200 ZX7-200 ZX7-250(Dual power) ZX7-250 Ex-work Price US$83 US$100 US$120 US$138 Supply Voltage(V) 220V/50Hz/Single 220V/50Hz/Single 220V/380V/50Hz 220V/50Hz/Single Power Factor 0.73 0.73 0.73 0.73 Rated input current(A) 43.6 43.6 43.6 43.6 No-load loss(W) 40 40 40 40 Output current adjustment range(A) 29-200 29-200 10-250 10-250 Enclosure protection class IP21 IP21 IP21 IP21 Rated output voltage(V) 28 28 30 30 Rated output current(A) 200 200 250 250 Insulation Class F F F F Suitable welding rod(mm) 3.2 & Below 3.2 & Below 3.2 3.2 Duty cycle% 60 60 60 60 Efficiency% 80 80 80 80 Weight 8 8 13 13 Size 400x155x291 400x155x291 Note(thickness) 2.0-6.0; Suitable for 2.5 electrode is long welding 2.0-6.0;Suitable for 2.5 electrode is long welding & 3.2 spot welding 2.0-6.0; Suitable for 2.5 electrode is long welding & 3.2-4.0 spot welding 2.0-6.0; Suitable for 2.5 electrode is long welding & 3.2-4.0 spot welding