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Help CenterShanghai Donsun Welding Group ZX7-250ST/315ST/400ST MINI MMA Manual Welding Machine Hand Welding Stick Electrode
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High-altitude, outdoor, indoor,
flexible use in multiple occasions
·Outstanding ARC Stability with Low Spatter.
Auto Protection against Over-Voltage and Over-Current.
Auto-Adaptive Arc Force minimizes electrode sticking in the puddle
without compromising arc stability or increased spatter.
Automatic Hot Start boosts the current during starting to make striking
an arc easier.
ZX7-250ST Universal voltage
Inverter technology
Intelligent air cooling
Over load protection
Easy to use
Model |
MMA-250ST |
MMA-315ST |
MMA-400ST |
Rated input voltage(V) |
1P 220V/380V±15% |
1P 220V/380V±15% |
1P 220V/380V±15% |
Input frequency(HZ) |
50/60 |
50/60 |
50/60 |
Rated input capacity（KVA） |
4/9 |
5/10 |
6/11 |
Rated input current (A) |
26/20 |
36/26 |
39/29 |
Duty cycle (%) |
60 |
60 |
60 |
No-load voltage(V) |
77/68 |
77/68 |
77/68 |
Current range (A) |
20-160 |
20-180/20-200 |
20-200/20-240 |
Voltage range(V) |
20-26.4 |
20-27.2/20-28 |
20-28/20-29.6 |
Efficiency (%) |
89 |
89 |
89 |
Power factor |
0.93 |
0.93 |
0.93 |
Rod diameter(mm) |
Ø1.6- Ø3.2 |
Ø1.6- Ø4.0 |
Ø1.6- Ø4.0 |
Weight (kg) |
3.85 |
5 |
5.1 |
Dimension(mm) |
290*153*250 |
320*165*260 |
320*165*260 |
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