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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.
- 2 in 1 combination device - TIG & MMA welding is possible up to 200A.
- Comprehensive pulse function - TIG PULS - prevents materials from burning through and reduces deformation due to heat, particularly suitable for welding thin sheets whose material may only be heated slightly. Adjustable parameters are: Pulse current, pulse width, pulse frequency, long and short pulse.
- IGBT technology - The latest and most modern transistor technology enables high performance welding! No transformer, no MOSFET, state-of-the-art IGBT!
- Lightweight & compact design - only 12.7 kg weight and dimensions of 449 × 238 × 437 mm. Innovative IGBT transistors save space and weight compared to the old MOSFET technology. No more heavy carrying!
- HF ignition - enables contactless ignition and ensures a much better welding result. No LIFT ARC, no strike ignition!
- Highest efficiency & performance - single-phase alternating current (230V) supplies the device and allows an output power of real 200 amps.
Device features & advantages
- Smart cooling & overheating protection - State-of-the-art technology, integrated overheating protection and high-performance cooling enable maximum power to be called up.
- 2T/4T (TIG) - determines the control of the operating mode and offers extended control over the current flow. In 2T mode, high-frequency ignition (HF) remains active until the button on the torch is released. In 4T mode, the arc is ignited after pressing and releasing the button once. After pressing and releasing the button again, ignition is terminated. Some functions, such as current reduction, are only possible in 4T mode.
- Current increase/decrease - prevents the formation of blowholes (end craters) at the end of the weld seam.
- Gas run-on (TIG) - protects the tungsten electrode from excessive wear and protects the weld seam from oxidation. The parameter can be set individually and separately. It specifies how long gas should flow after ignition.
- Innovative hose package including modified WP-26 torch with flexible head. The welding current is regulated via a setting wheel installed directly on the torch. The torch is connected to the hosepack via a ball joint. This enables flexible and easy working.

- AC-Balance - is a variable setting between breaking up the oxide layer (-) and a deeper penetration (+). This helps to influence the properties of different materials and alloys.
- Remote regulation via the supplied WP26FR torch, the welding current can be conveniently adjusted at any time using the rotary control mounted on the torch.
- Welding current / pulse current - The two buttons "Welding current" and "Pulse current" can be used to set two different current levels for a welding process, between which the welding current then always alternates.
- Pulse width - The pulse width is used to set how long the welding current assumes the current intensity of the pulse current before it returns to the normal welding current intensity.
- Pulse frequency - The pulse frequency determines how often the current strength changes back and forth between the two set values in a defined period of time.
- Long pulse - The weld seam becomes wider, the heat input is higher and the penetration is deeper.
- Short pulse - The weld pool is easier to control and there is less risk of welding a hole in the sheet.
- Hotstart - Automatic voltage increase at start for better ignition results.
- Anti-stick - Automatic shutdown of the welding current if the electrode sticks, making it easy to remove.
- TIG (Tungsten Inert Gas) - Gas-shielded welding with inert/inert gases such as argon 4.6 (99.996%). An arc is created between the tungsten electrode and the workpiece in an argon bell jar. This melts the material and any filler material added. A weld seam is created.
- MMA electrode welding / ARC welding - a universal welding process. An electric arc melts the electrode to form the weld seam. No shielding gas is required and can therefore be used flexibly at any location Note: The device is not intended for use in residential areas where power is supplied via a public low-voltage supply 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 TIG 200 Pulse ST |
| Output current TIG / MMA | 10-200 A (WIG) / 30-160 A (MMA) |
| Duty cycle TIG (40 °C) | 15 % at 200 A, 60 % at 150 A, 100 % at 100 A |
| MMA duty cycle (40 °C) | 10 % at 160 A, 60 % at 100 A, 100 % at 60 A |
| Open circuit voltage (U₀) | 68 V (WIG DC/MMA) / 48 V (WIG AC) |
| Protection class | IP21S |
| Insulation class | F |
| Mains voltage | 230 V AC (+-15%) / 1 ~ (single-phase) |
| Mains frequency | 50/60 Hz |
| Maximum mains current (I1max) (TIG / MMA) | 33.5 A / 33.8 A |
| Maximum effective mains current (I1eff) (TIG / MMA) | 13.0 A / 10.7 A |
| Weight | 12.7 kg |
| Dimensions L x W x H (mm) | 449 × 238 × 437 |
| Mains connection | Schuko type CEE 7/7 |
| Standards | IEC 60974-1; EN 60974-10 (Class A) |
| WEEE reg. no. DE | 85577200 |
| Certified by | SGS Standards Technical Services Co, Ltd. |
Scope of delivery
- 1 x STAHLWERK AC/DC TIG 200 Pulse ST
- 1 x Professional TIG welding torch WP-26FR / hose package 3 meters* with adjustment wheel for remote control of the welding current on the handle and flexible torch head
- 1 x TIG TIG accessory set 8 pieces:
- 3 x gas nozzles sizes: 5, 6, 7
- 1 x clamping sleeve size: 1.6
- 1 x clamping sleeve housing size: 1.6
- 2 x torch caps - one short and one long
- 1 x universal tungsten electrode
- 1 x earth clamp cable length 3 meters
- 1 x electrode holder 3 meters
- 1 x wire brush
- 1 x slag hammer
- 1 x Gas connection hose with quick coupling 5 meters
- 1 x Quick coupling for gas pressure reducer (w.)
- 1 x protective cover
High-quality professional WP-26 TIG hose package with adjustment wheel for remote control of the welding current on the handle. An 8-piece consumable set for immediate start is included.
Robust electrode holder with modern 9 mm mandrel connection and 25 mm² strong cable cross-section. Best conductivity due to high-quality copper cables. Different angles for rod electrodes possible.
Robust earth clamp with modern 9 mm mandrel connection and 25 mm² strong cable cross-section. Best conductivity due to high-quality copper cables.
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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.