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Welding Machine ZX7-300 PRO


The ZX7-300 Pro is a powerful and versatile DC MMA welder designed for professional applications. With a welding current output of 300A, 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 ZX7-300 PRO :

  • Advanced Imported IGBT inverter technology, high efficiency, energy saving and environmental protection.
  • 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.
  • Suitable for stable welding with extended cables up to 150meters.
  • With five-proof design,it ensures working stable and reliable when in kinds of harsh welding circumstances.
  • High level water resistant design,the machine can be fully dipped into the water under switch off condition.
  • Use PWM control technology and constant current output control,welding current can be exactly controlled.
  • With auto protection function to prevent over-current and over-heating, it makes the machine safe and reliable.
  • Applicable to acidic, alkaline, high-strength electrode.
  • Intelligent fan add comprehensive protection.
  • 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 15 KVA
Rated Input Current 27 A
No-load Voltage 65 V
Duty Cycle 60% 320A
100% 248A
Current Adjusting Range 20-320A
Voltade Adjusting Range 20.8-32.8V
Efficiency 85%
Insulation Class F
Shell Protection Class IP21S
Overall Dimension 460x220x365 mm
Net Weight 12 Kg
Suitable Electrode Size 2.5-5.0mm