
Device functions & components
- AC/DC TIG welding - alternating current (AC) and direct current (DC). Welding of almost all metals, such as steel, stainless steel, aluminum, copper and many more
- Plasma / CUT - A plasma jet is generated by means of electricity, which melts the material, which is then removed with compressed air. This allows all conductive metals such as standard steel, stainless steel, copper, aluminum, titanium and many more to be cut precisely and effortlessly.
- Cutting thickness - Depending on the material, cuts of up to 12 mm are possible. Mild steel ST37 up to 12 mm, V2A or V4A up to 8 mm, aluminum up to 5 mm.
- 3 in 1 combination device - TIG & MMA welding is possible up to 200 A, plasma cutting up to 45 A.
- IGBT technology - The latest and most modern transistor technology enables high performance welding! No transformer, no MOSFET, most modern IGBT!
Device features & advantages
- Lightweight & compact design - only 15.65 kg weight and dimensions of 507 x 238 x 437 mm. Innovative IGBT transistors save space and weight compared to the old MOSFET technology. No more heavy carrying!
- HF ignition (TIG) - enables non-contact ignition and ensures a much better welding result. No LIFT ARC, no strike ignition!
- Contact ignition (CUT) - High frequency (HF) contact ignition for first-class ignition behavior. One stroke over the workpiece is enough.
- Cutting current (CUT) - Infinitely variable adjustment from 20 to 45 A.
- Air follow-up (CUT) - After the cutting process is complete, air flows automatically to cool the torch and reduce wear on the nozzle and electrode.

- 2T/4T (TIG) - determines control of the operating mode and provides advanced control over the current flow. In 2T mode, high frequency (HF) ignition remains active until the button on the torch is released. In 4T mode, pressing and releasing the button once ignites the arc. After pressing and releasing again, the ignition is terminated. Some functions such as current reduction are only possible in 4T.
- Current reduction (TIG) - prevents the formation of shrink marks (end craters) at the end of the weld.
- Gas pre-run and gas post-run (TIG) - protect the tungsten electrode from excessive wear and protect the weld seam from oxidation. The parameters can be set individually and separately. They specify how long gas should flow before and after ignition.
- AC balance - is a variable setting between breaking up the oxide layer (-) and deeper penetration (+). This helps to act on properties of different materials and alloys.
- Hotstart - Automatic voltage increase at start-up for better ignition results.
- Anti-Stick - Automatic shutdown of welding current when the electrode sticks allows for easy removal.
- Highest Efficiency & Power - Single phase AC (230V) power supplies the unit and allows output power of true 200 amps.
- Smart Cooling & Overheat Protection - State-of-the-art technology, built-in overheat protection and high-performance cooling allow maximum power to be retrieved.
- TIG (Tungsten Inert Gas) - Gas shielded welding with inert/inactive gases such as Argon 4.6 (99.996%). An arc is created between the tungsten electrode and the workpiece in an argon bell. This melts the material and any filler material added. A weld seam is formed.
- MMA electrode welding / ARC welding - a universal welding process. An arc melts the electrode to form the weld. No shielding gas is required.
Note: The unit is not intended for use in residential areas where power is supplied by a public low-voltage power system. It may be difficult to ensure electromagnetic compatibility in these areas due to both conducted and radiated interference.
Technical Data
| Model | STAHLWERK AC/DC WIG 200 CUT ST |
| Output current (TIG/MMA/CUT) | 10 - 200 A (WIG) / 30 - 160 A (MMA) / 20 - 45 A (CUT) |
| Duty cycle TIG (40°C) | 15% at 200 A / 100% at 100 A |
| MMA duty cycle (40°C) | 10% at 160 A / 100% at 60 A |
| CUT duty cycle (40°C) | 10% at 45 A / 100% at 20 A |
| Open-circuit voltage (U0) | 68 V (DC) / 48 V (AC) / 340 V (CUT) |
| Efficiency (%) | 85 % |
| Protection class | IP21S |
| Mains voltage | 1 x 230 V AC (+- 15%) |
| Mains frequency | 50/60 Hz |
| Maximum mains current (I1max) (TIG/MMA/CUT) | 30 A / 30.5 A / 28.0 A |
| Maximum effective mains current (I1eff) (TIG/MMA/CUT) | 11.6 A / 9.6 A / 8.8 A |
| Machine weight | 15.65 kg |
| Dimensions L x W x H (mm) | 507 x 238 x 437 mm |
| Mains connection | CEE 7/7 Schuko plug |
| Standards | IEC 60974-1; EN 60974-10 (Class A) |
| Certified by | SGS-Standards Technical Services Co, Ltd. |
Scope of delivery
- 1 x STAHLWERK AC/DC TIG 200 CUT ST Welding Machine
- 1 x Professional TIG Welding Torch WP-26F / 3-meter* hose set with flexible torch head and kink protection at the gas connection
- 1 x 8-piece TIG accessory set:
- 3 x gas nozzles, sizes: 5, 6, 7
- 1 x collet size 1.6
- 1 x collet housing, size 1.6
- 2 x Torch Caps—one short and one long
- 1 x universal tungsten electrode
* The pre-installed accessories shown in the welding torch illustration are included in the 8-piece set
- 1 x Professional plasma hose kit AG-60/SG-55, 3 meters.
- 1 x 3-piece plasma accessory set (this is already pre-installed on the plasma torch):
- 1 x plasma nozzle
- 1 x plasma electrode
- 1 x ceramic cap
- 2 x replacement plasma nozzles
- 2 x replacement plasma electrodes
- 1 x water separator with pressure gauge and Snap-on quick-connect couplings
- 1 x connecting hose with Snap-on quick-connect couplings from the unit to the water separator, incl. 6-piece connection set
- 1 x ground cable, 3 meters
- 1 x electrode holder, 3 meters
- 1 x wire brush
- 1 x slag hammer
- 1 x gas connection hose with quick-connect coupling, 5 meters
- 1 x protective cover
- 1 x Teflon tape
- 1 x wearAG-60 25-piece set (10 x plasma nozzles, 10 x plasma electrodes, 5 x ceramic caps)
- 3 x TIG welding rods: ER70S G3 for steel, ER307Si for stainless steel, and ER4043Si5 for aluminum
- 2 x WL15 gold tungsten electrodes (1 x 1.6 mm each, 1 x 2.4 mm)
- 1 x TIG wear parts set, 26-piece
- 1 x pressure regulator
- 1 x professional welding helmet
High-quality professional AG-60 plasma hose package with integrated probe protection. Optimum cutting and ignition performance up to 70 A. Thicker hose and more robust wear parts than PT-31.
High quality professional WP-26F TIG hose package with flexible torch head and bend protection at the gas connection. An 8-piece consumable set for immediate start is included.
Connection of compressed air hoses in seconds thanks to 3/8" snap-on quick coupling on the unit and water separator. One handle is all it takes. Including 5 metre gas connection hose with quick coupling.
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STAHLWERK Schweissgeräte Deutschland GmbH was founded in 1998 and offers original welding equipment as a manufacturer. We are your professional and reliable welding equipment supplier. Product safety carries the registered trademark STAHLWERK. The company responsible for product safety is STAHLWERK Schweissgeräte GmbH
located in Bornheim
Mainstraße 4
53332
Germany. For questions regarding product safety
please contact us at the electronic address info@stahlwerk-schweissgeraete.de or by phone at +49 228 24331713. The person responsible for product safety is Alexander Hamann.