PMI – 350 AC/DC TL

Multifunctional device – The ideal solution for welding Al, VA, St, Ti, Ni, Zr, Cu with a thickness of up to ~10mm.


The electric arc is constricted by a copper nozzle, which causes a higher power density. The concentrated electric arc can be achieved in conjunction with the controllable able gas, higher welding speeds and a deeper penetration, which saves time and money. The tight bundling of the electric arc and the welding speed causes only a narrow heat-effected zone to form, which has a lower thermal distortion in the component result.

Technical Specifications PMI – 350 ACDC TL
supply voltage 3x400V AC ± 15% 50 / 60 Hz
main connection 4 x 32A CEE plug, 6 mm²
welding current (60% ED) 320A
welding current (100% ED) 290A
control range 3 ÷ 350A
idle voltage 95V
pilot current (100% ED) 30A
control range pilot current 0,5 – 50A
degree of protection IP 21 S
manual plasma control 0,2 ÷ 2,5 l Ar/min
manual protection gas control 1,0 ÷ 25,0 l Ar/min
pulse rate 0,1 – 3300Hz
pulse balance 1 – 99%
pulse break current 10 – 100%
pulse time 0,15 – 3000 ms
break time 0,15 – 3000 ms
break current 5 – 350A
weight 115 kg
dimensions 1200 x 520 x 940mm

PGR-05: electr. Plasma control, range 0,1 ÷ 5 l/min
SGR-20: electr. Inert gas control, range 0,5 ÷ 20 l/min
MCC: Motor Control Card to drive from an SBI wire case

  • high quality of the seam

  • high process safety

  • high degree of automation

  • high productivity due to high welding speed


The AC/DC soft plasma welding speed is used for sheets up to 10mm thick. The materials that are mainly used for AC/DC hey hole welding are aluminium, stainless steel, steel, titanium, zirconium and copper.