
SuperTIG 315EX
The heaviest Granhult TIG. Full power on aluminium from three-phase.
The SuperTIG 315EX is a 400 V AC/DC TIG welder for demanding workshop and production use. 315 A of TIG current handles heavy aluminium, while the 10 A lower limit and adjustable pulse keep thin sheet under control. A water-cooled WP18 torch comes as standard.
In AC mode the machine welds aluminium and its alloys; in DC mode steel, stainless, chrome-moly, titanium and copper. AC frequency (20–250 Hz) and AC balance (10–90 %) are set independently, so arc width and oxide cleaning can be tuned to the job.
Stick welding runs up to 250 A with electrodes up to 5 mm. Hot Start and Arc Force help the strike and keep the arc stable.
A water cooler is not included and is recommended above 180 A. Shielding gas, tungsten electrodes and filler rod are sold separately.
Technical data
Electrical
| Input voltage | 400 V, 3-phase |
|---|---|
| Fuse | 16 A |
TIG
| TIG output | DC 10–315 A · AC 20–315 A |
|---|---|
| TIG duty cycle (40 °C) | 35 % at maximum current |
Stick (MMA)
| Stick output | 20–250 A |
|---|---|
| Electrodes | up to Ø 5 mm |
| Stick duty cycle (40 °C) | 250 A @ 35 % · 200 A @ 60 % · 160 A @ 100 % |
Controls
| Pulse frequency | 0.2–250 Hz |
|---|---|
| Pulse on-time | 10–90 % |
| AC frequency | 20–250 Hz |
| AC balance | 10–90 % |
| Upslope | 0–10 s |
| Post-flow | 0–25 s |
| Arc start | HF / Lift |
| Torch trigger | 2T / 4T |
| Foot pedal | optional |
Build
| Efficiency | ≥ 83 % |
|---|---|
| Enclosure rating | IP21S |
| Weight | 36 kg |
| Warranty | 24 months, including professional use |
Compatible accessories

ICE water cooling unit 10 l
Water cooling for TIG and MIG torches up to 300 A. Brass pump, 10 l tank, 150–1500 W cooling, 230 V.
Tuontitukku.fi ↗
PedalPRO foot pedal, 7-pin
Control current with your foot while welding. Fits e.g. SuperTIG 200EX and 250EX.
Tuontitukku.fi ↗
TIG torch WP-26, water-cooled, 4 m
250 A water-cooled torch with 7-pin connector.
Tuontitukku.fi ↗
TIG torch consumables kit, 18 pcs
Collets, collet bodies and cups for WP-17/18/26 torches.
Tuontitukku.fi ↗

