Special Functions

MMA Cell

Digital control and excellent welding with cellulosic electrodes is an optimized combination also for piping and
Oil & Gas industry applications.


The pulse TIG with frequency until 2500Hz allows to weld very thin materials with easy arc control and very low heat input on workpiece.


Pre-set balanced parameters, stored in the Synergic Pulse TIG DC SYN curve, simplify Pulsed welding by adjusting only welding current.


The Q START (Quick Start) function facilitates joining of the parts in the initial stage of the welding process.
On activating this function the machine automatically switches to Synergic pulsed mode for a preset time. The resulting pulses create movement of the molten metal on the two sheet metal edges thereby accelerating formation of the join.This function is invaluable in the case of seams with slight openings or with irregular preparation. The
duration of the series of pulses can be adjusted, (from 0.1 to 60 second) depending on the thickness and shape of the sheet to be welded.


The DYNAMIC ARC function makes it possible to keep the product of Voltage x Current constant. The power source increases the welding current as the arc voltage decreases and reduces the welding current if the arc voltage increases.


The Q-SPOT (Quick Spot) function makes it possible to minimise tacking times for light gauge sheet metal. The operator conveniently places the tungsten electrode on the fixing point, thereby obtaining perfect control of the position of the join. Once the electrode has been lifted the machine emits a very high intensity welding current pulse with a very short preset time (from 0.01 Sec to 10 Sec). The pulse time varies depending on the type of sheet metal to be joined. In this way the welded point closes instantly with minimum heat transfer, leaving the metal white, clean and almost cold.


The MULTITACK system makes it possible to reduce heat output while joining two light gauge parts. The series of arc strikes at short time intervals allows the material to cool during the pause between one strike and the next and thus minimize its deformation. The facility to adjust the frequency of the series of arc strikes in the
time unit makes it possible to adapt the electric arc to the welding speed and the joint geometry.


This makes it possible to create a highly penetrative and precise fusion bath so that very light gauge sheets can be welded with an electrode tip comparable to that of an electrode for DC – TIG welding.


This allows to obtain high welding speed and creating the weld puddle rapidly on a cold workpiece.

  1. Higher execution speed
  2. Higher deposition rate
  3. Lower heat input and less plastic deformation
  4. Better mechanical properties
  5. Higher penetration, offers lower risk of lack of fusion
  6. Lower production costs and depreciation
  1. Higher penetration, lower risk of lack of fusion
  2. Higher execution speed
  3. Higher arc stability also with longer stick-out
  4. Lower production costs
  1. Optimized root pass welding
  2.  Vertical down in sound weld quality
  3.  Better moldability
  4.  “Cold“ droplet transfer
  5.  Thinsheet welding
  1. More stable welding arc, with almost no sprays and micro-projections
  2. Very reactive arc to the torch movement
  3. Reduced energy transmitted to the welded workpiece
  4. Very linear transfer with an optimal edge wettabilty and a very high speed of execution
  1. Conceived in order to keep even the penetration during welding, independently from stick out
  2. Joints defects, such as lack of fusion and irregular penetration are reduced at minimum
  3. An excellent torch handling is granted to the welder
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The Digital Sense Ignition allows to achieve an almost spatterless ignition without wire explosions and with a low heat energy input to the welded part.

  • 60 % less Spatters in the Ignition-phase on Stainless steel (- 60% > 0,8 mm thickness – 20 % > 5mm thickness)
  • 30 % less Spatters in the Ignition-phase on Carbon steel (- 30% > 0,8 mm thickness – 10 % > 5mm thickness)
  • Ignition Optimization also with wire in short circuit with remarkable spatters´ and explosions´ reduction