PSW – 500 TL

Multifunctional device – the ideal solution for welding sheets up to ~3,5mm thick (upper sheet metal).


The focused electric arc provides high power density and accurate positioning to a spot weld, resulting in low welding times. The strong bundling of the electric arc and the short welding time causes only a small heat-effected zone to form, which has a lower thermal distortion in the component result.

Technical Specifications PMI – 350 ACDC TL
supply voltage 3 x 400V AC ± 15% 50 / 60 Hz
power 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
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 105 kg
dimensions 1200x520x940 mm

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 saftey

  • high degree to automation

  • high productivity due to high welding speed


The plasma spot welding machine is used for sheets up to 3,5mm thick (upper sheet metal). The main materials used for plasma spot welding are stainless steel, steel, titanium, zirconium and copper.