Home » Arc Welders » GYS PROGYS 250 TRI MMA Welder


Further Reductions Available On Request 01276 505012

  • Current Range: 10 – 250A
  • Three Phase
  • Weight:  12.3 Kg

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A professional three phase welding inverter, the GYSPRO 250 TRI is capable of functioning on long cable runs, with a wide input voltage (340 – 460V).

At a very good price point, the 250 TRI is ideal for MMA welding on a 3 phase network.  A protection rating of IP21 makes the machine very robust, ideal for intensive workshop or mobile use.  A high duty cycle makes this machine suitable for light industry work, in mechanised welding, sheet metal and piping.

A touchpad interface makes setting the machine easy, whilst a digital meter displays settings clearly.

The PROGYS 250 TRI is suitable for intensive use of welding rods 1.6 – 5.0mm in diameter. Steel, stainless steel, cast iron, rutile, or basic electrodes are all suitable for use.



Intuitive control panel with digital display

Choice between LIFT TIG or MMA modes.

Welding power range 5 > 250A.

Sealed panel prevents dust and moisture ingress



Benefitting from the following features:

Arc force GYS


Adjustable Arc Force:  Instantaneous increase in welding current in difficult welding conditions.


GYS Anti sticking


Anti Sticking: Allows easier arc starting and helps prevent rod sticking to the material.


Hot start GYS


Hot Start: Makes it easier to arc with any type of metal (Low Hot Start: For thin metal sheets – high Hot Start for metals that are difficult to weld such as dirty or oxidized sheets)



Lift TIG: The arc is created by touching the metal with the tungsten electrode avoiding tungsten inclusions and radio electrical disturbances.

Automatic arc release: This innovative function allows the operator to finish welding without creating craters. The time is adjustable and the function is activated by a movement of the torch.


  • Immediate start due to a high no load voltage.  Makes arc starting easier.
  • Constant welding power
  • Very smooth melting of welding rods with DC current
  • Excellent arc stability and good penetration.
  • High duty cycle enabling intensive use
  • Lift TIG Capability – Easier start to ensure perfect quality welding bead. A simple movement of the wrist starts the automatic downslope to ensure a smooth and clean welding finish.
  • Suitable for use with generators +/- 15% (Automatic voltage regulation recommended)
  • European made (France)
  • 2 Year warranty


SUPPLIED AS MACHINE ONLY – Add 5m lead set using drop down menu above.  Please specify electrode holder preference in notes section upon checkout – twist type or crocodile type available.


Amps range 10 – 250
Duty cycle @ 50% (20ºC) 200A
Input fuse 16A (400V)
Min generator size 12.5kVA
Electrode size for MMA 1.6 – 5.0mm
Dimensions 520 x 370 x 300mm
Dinse plug size 35 – 50
Approx. weight 12.3kg


GYS are a French family firm started in 1964.  Having now expanded internationally, they have a large UK base in Rugby, UK which looks after warranty issues and distribution.


To purchase a TIG torch for this machine, please select from the dropdown menu above.  TIG torch is supplied as a 2 part cable with dinse connector and 3/8″ BSP gas hose connector.  Note that the torch gas control is via a valve on the torch handle unlike on dedicated TIG machines with a gas solenoid.

Additional information

Add Welding Leads:

Machine Only, Add 5m welding lead set (+£60)


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