MULTIMIG 621 – Aluminum Welder

The 621 delivers high current output with Three Phase supply voltage

Double Pulse feature – mechanically and electrically controls the welding parameters to make aluminum welding easier and for increased confidence.

  • Synergic pulsed technolgy is required by most OEMs for aluminum welding. Includes a complete set of synergic programs in memory for brazing, welding and aluminum wire.
  • Inverter technology enables precision electronic control of output power for better quality welds.
  • GREEN technology – Integrated Power Factor Correction (PFC) technology reduces input power by avoiding energy waste found in most electronic-based equipment and ultimately reduces operating costs. High Harmonic Distortion is hard on the power grid and contains non-working energy, which is costly & environmentally wasteful.
  • Two types of torches can be used with MultiMig power source – a standard MIG torch or the unique push-pull torch. The Chief Elektron Fusion Technologies push-pull system torch has an up-down digital current adjust at your finger tip, thanks to a feeder built into the grip. The very small and light weight torch (no bulky spool-gun) enables real-time control of welding process by control of the wire feed speed and current level. The push-pull system corrects many of the problems encountered when feeding and welding soft aluminum wire, down to 0.6mm.
  • Many programmable options are available to customize the unit operation to meet most working conditions. Options include: Arc Length, 2 time, 4 time, Spot Time, Pause Time, Inductance, Burn Back, Soft Start etc. Can operate in pulse synergic, synergic, or conventional mode.


Supply Voltage Multiple, 3Ø *
Current Output 15A to 275A
Duty Cycle** 275A – 40%
255A – 60%
240 – 100%
Inverter Synergic Pulse Yes
Double Pulse Yes
Wire type 0.6/0.8/0.9/1.0/1.2 Fe
0.6/0.8/0.9/1.0/1.2 AL
0.6/0.8/0.9/1.0/1.2 SS
0.8/0.9/1.0 CuSi3
Upgrade Synergic programs in memory Yes
Power units/torches 1
Push-pull torch optional
Max Spool size Ø 200 mm / 5 kg
Ø 300 mm / 15 kg
Built-in cart Yes
Torch cable lengths 3.5m standard
4.0m push-pull
Programmable Options  
Trigger -2T/4T Yes
Arc Length Yes
Spot Weld Yes
Inductance Yes
Burnback Yes
Soft Start Yes
Hot Start Yes
Crater Fill Yes
Pre/Post Gas Yes

* Selectable input voltage from 200V to 480V
**Duty Cycle – For example 200A – 20% meansthe welder can output 200A for 2 minutes non-stop, at 40°C ambient

Request More Information 


There are no reviews yet.

Be the first to review “MULTIMIG 621 – Aluminum Welder”

Your email address will not be published. Required fields are marked *