INDUSTRIAL TIG WITH PULSE
SPARTUS® ProTIG 321PW DC is a modern inverter welder built with the latest pulse width modulation technology, PWM, together with an IGBT transistor power module.
It welds TIG DC and MMA DC with a current of up to 320A. It runs on a three-phase 400V supply.
This high grade power source lets you set the following parameters in the TIG process:
• current up slope and down slope,
• for TIG Pulse: pulse current, base current, pulse frequency, pulse width,
• choice of 2T/4T / SPOT operating mode,
• pre gas, post gas,
and in the MMA process:
• welding current,
• Arc Force,
• Hot Start.
The SPARTUS® ProTIG 321PW DC is operated through a modern LCD display. That makes control easier, and because the parameters are adjusted continuously and without steps, it allows precise setting and supervision of the advanced functions.
With the TIG Pulse option the machine handles very thin sheet metal well. The ProTIG 321PW DC holds 10 memory channels. You can save the settings you use most often and call them up again in a moment.
The ProTIG 321PW DC model also carries an integrated liquid cooler that cools the torch efficiently during welding at high currents. The whole set stands on a transport trolley with a place for the shielding gas cylinder.
The modern design, the LCD function panel and the option of wireless control, combined with high grade components, set the ProTIG 321PW DC apart on the market.
This professional machine from the SPARTUS® Pro line performs well in production plants and in industry.
![Spartus ProTIG 321PW DC [power source, cooler, trolley]](https://spawlab.pl/wp-content/uploads/2026/09/spartus-protig-321pw-dc-rdo-chodnica-wzek-1-1000x960.webp)
![Spartus ProTIG 321PW DC [power source, cooler, trolley], photo 2](https://spawlab.pl/wp-content/uploads/2026/09/spartus-protig-321pw-dc-rdo-chodnica-wzek-2-1000x960.webp)
![Spartus ProTIG 321PW DC [power source, cooler, trolley], photo 3](https://spawlab.pl/wp-content/uploads/2026/09/spartus-protig-321pw-dc-rdo-chodnica-wzek-3-1000x960.webp)
![Spartus ProTIG 321PW DC [power source, cooler, trolley], photo 4](https://spawlab.pl/wp-content/uploads/2026/09/spartus-protig-321pw-dc-rdo-chodnica-wzek-4-1000x960.webp)
![Spartus ProTIG 321PW DC [power source, cooler, trolley], photo 5](https://spawlab.pl/wp-content/uploads/2026/09/spartus-protig-321pw-dc-rdo-chodnica-wzek-5-1000x960.webp)
![Spartus ProTIG 321PW DC [power source, cooler, trolley], photo 6](https://spawlab.pl/wp-content/uploads/2026/09/spartus-protig-321pw-dc-rdo-chodnica-wzek-6-1000x960.webp)

![Spartus ProTIG 321PW DC [power source, cooler, trolley]: Böhler Welding TIG rods in an R20 box, coppered](https://spawlab.pl/wp-content/uploads/2026/09/bohler-welding-prety-tig-karton-r20-miedziowane-640x480.webp)


![Spartus ProTIG 325PW AC/DC [power source, cooler, trolley]](https://spawlab.pl/wp-content/uploads/2026/09/spartus-protig-325pw-ac-dc-zrodlo-chlodnica-wozek-1-640x480.webp)

![Spartus ProTIG 2000W AC/DC [power source, cooler, trolley]](https://spawlab.pl/wp-content/uploads/2026/09/spartus-protig-2000w-ac-dc-zrodlo-chlodnica-wozek-1-640x480.webp)
