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Professional MMA Welder

  • ARCS-400D
  • ARCS-500D
  • ARCS-630D

The professional MMA welder is a high quality welding unit produced by DONSON. It is capable of producing smooth, stable AC electric arc which is suitable for welding carbon steel, alloy steel, stainless steel and various other materials.

Various electrodes can be used on our MMA welder including the hydrogen electrode and one made of stainless steel. This arc welding unit delivers high welding stability, with limited weld flash and no protruding weld. The resulting weld is nearly seamless, and thus can have clear X-ray image.

If you are considering buying a set of inverter welders to be used in shipbuilding industries, offshore oil platform, water tower, oil storage tank, and pipeline welding applications, or workshop construction and maintenance works, this ARCS series might be your best bet.

1. IGBT technology enables high output power with duty cycle up to 60%. Made with reliable quality, this MMA welder is suitable for welding large-scale steel plant and shipbuilding factory.
2. Computer control system has the functions of automatic fault diagnosis and operation protection. Pre-safeguard technology, coupled with millisecond response time ensures high stability of the whole machine.
3. This inverter welder is able to strike arcs easily and produce deep welds. The resulting weld has an attractive surface.
4. Modular design allows fast installation, disassembly, and easy repair and maintenance.

Technical Specifications

Model ARCS-400D ARCS-500D ARCS-630D
Input voltage(V) 3 phase 380 ± 10% 3 phase 380 ± 10% 3 phase 380 ± 10%
Frequency(HZ) 50/60 50/60 50/60
Output current range(A) 15-400 15-500 15-630
Efficiency 87% 87% 87%
Power factor 0.98 0.98 0.98
Rated input power(KW) 19.7 26.3 36.2
No-load voltage(V) 74 77 80
Rated input current(A) 30 40 55
Rated duty cycle(40°C) 60% 60% 60%
Protection class IP23S IP23S IP23S
Insulation class F F F
Electrode diameter(mm) 2.5-5.0 2.5-5.0 2.5-5.0
Weight(Kg) 40 50 59
Dimensions (mm) 580×310×530 640×330×600 690×350×660
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