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Welding Machine ZX7-400 PRO


The ZX7-400 Pro is a powerful and versatile DC MMA welder designed for professional applications. With a welding current output of 400A, advanced inverter technology, and adjustable parameters, it provides precise control for optimal weld quality. Its user-friendly interface and durable construction make it a reliable choice for professional welders.


The advantages of DC MMA welder ZX7-400 PRO :

  1. Advanced Imported IGBT inverter technology, high efficiency, energy saving and environmental protection.
  2. Super strong ability of the anti-fluctuating of power supply voltage.Under 280-460V ,the welding power source will has output current, and can weld.
  3. Suitable for stable welding with extended cables up to 150meters.
  4. With five-proof design,it ensures working stable and reliable when in kinds of harsh welding circumstances.
  5. High level water resistant design,the machine can be fully dipped into the water under switch off condition.
  6. Use PWM control technology and constant current output control,welding current can be exactly controlled.
  7. With auto protection function to prevent over-current and over-heating, it makes the machine safe and reliable.
  8. Applicable to acidic, alkaline, high-strength electrode.
  9. Intelligent fan add comprehensive protection.
  10. Ultra-low output function (VRD), meet with EU standards to prevent electric shock


Standard Input Voltage 3P AC380V±10%
Valid Input Volrage Range 280-460V
Frequency 50/60 Hz
Rated Input Capacity 17 KVA
Rated Input Current 32 A
No-load Voltage 65 V
Duty Cycle 60% 400A
100% 310A
Current Adjusting Range 20-400A
Voltade Adjusting Range 21.6.36-8V
Efficiency 85%
Insulation Class F
Shell Protection Class IP21S
Overall Dimension 460x220x365 mm
Net Weight 15 kg
Suitable Electrode Size 3.5-6.0mm