
Functions
- AC TIG arc welding (AC TIG). TIG arc welding with alternating current. The polarity of the electrode alternates between positive and negative during the entire welding process. Mainly used for welding aluminum and aluminum alloys.
- AC TIG pulse welding. In AC TIG pulse welding, the pulse and alternating current modes are mixed, allowing an even more perfect welding result to be achieved.
- DC arc welding (MMA/e-hand). MMA/electrode manual welding is a universal welding process, as it can be used under almost all conditions. Various electrodes with different polarities can be connected during MMA/electrode manual metal arc welding.
- DC TIG arc welding (DC TIG). TIG arc welding with direct current. The polarity of the tungsten electrode is either positive or negative during the entire welding process.
- TIG pulse welding. In TIG pulse welding, a base current and a high pulse current of the same polarity are added at regular intervals to optimize the arc properties for the desired welding applications. This avoids the risk of burning through thin materials and reduces the deformation of the material caused by the heat.
- Spot function. An integrated spot function is used for spot welding thin sheets and body parts.
- Anti-stick (MMA). If the electrode sticks to the workpiece, the welding current is automatically reduced. The electrode does not anneal and can be easily detached from the workpiece.
- Hotstart (MMA). Automatic voltage increase at the start for better ignition results. Prevents the sticking of the rod electrode by briefly superimposing the set welding current and heats up the start of the weld seam more quickly.
- Hot start (TIG). The hot start function enables a more even and stable arc start and increases the efficiency of arc welding. The hot start current can be set between 30-150 A.
- IGBT technology. Powerful, innovative solution that sets new standards in welding technology.
- Smart cooling. A powerful fan enables maximum duty cycle to be utilized through excellent cooling.
- ST-Guard housing. Is ergonomic, robust and reliable. The control panel is easily accessible and intuitive to operate.
Features & Benefits
- Gas Preflow. Thanks to gas preflow, the shielding gas flow begins before the arc is struck. This prevents the workpiece from coming into contact with air at the start of welding. As a result, the tungsten electrode is protected from excessive wear, and the weld bead is protected from oxidation. The gas pre-flow time can be individually adjusted depending on the welding requirements.
- Post-weld gas flow. After the arc extinguishes, the tungsten electrode is cooled by the post-weld gas flow, and the molten pool is protected from oxidation. The post-weld gas flow duration can be individually adjusted depending on the welding requirements.
- Start current. Current used at the start of ignition before it transitions to the set welding current (4T).
- Welding current. Continuously adjustable welding current.
- Final current. Current that is applied at the end of the arc before it extinguishes (4T).
- Current Rise. After the arc is fully ignited, the welding process transitions to the current rise phase, during which the welding current is linearly increased from the set starting current value to the desired welding current value (4T).
- Current reduction. After the torch trigger is pressed and released again (4T), the unit enters an automatic current reduction phase. This prevents pitting (end craters) at the end of the weld.
- Remote control via torch or foot pedal. The welding current can be conveniently adjusted at any time using the rotary control mounted on the torch. Alternatively, the welding current can also be controlled using our foot pedal (included with the unit).
- Foot Pedal – Remote current control via the foot pedal. The foot control mode offers the advantage of allowing you to adjust the current even during the welding process, giving you various options for performing welding tasks. Pulse function is not available in pedal mode. The maximum current is set on the unit. Set the foot pedal to 10. When the foot pedal is pressed, the unit initiates the weld with a lower current than the value shown on the display. Once the foot pedal is fully depressed, the set maximum current is reached. The value on the display does not change during this process. Examples: Maximum current on display: 100 A / Ignition current via foot pedal: approx. 40 A; maximum current on display: 150 A / Ignition current via foot pedal: approx. 80 A; maximum current on display: 200 A / Ignition current via foot pedal: approx. 110 A
- AC Frequency. Depending on the material being used, the frequency density of the AC waveform can be optimized. This accelerates the welding process and improves the weld bead shape.
- AC Balance. This function allows you to adjust the positive and negative current cycles to better break up the oxide layer in the horizontal direction during AC TIG welding.
- Cleaning current. The cleaning current is used to break up the oxide layer in the longitudinal direction and to accelerate the formation of the molten pool.
- Pulse current. The pulse current is a higher welding current that alternates periodically with the lower base current.
- Pulse width. The pulse width is the duration of a single pulse. The pulse width is used to set the duration of the pulse current.
- Pulse frequency. The pulse frequency determines how often the current switches back and forth between the pulse and base current set values within a specified time interval.

Note: The device is not intended for use in residential areas where the power supply is provided by a public low-voltage power supply system. It may be difficult to ensure electromagnetic compatibility in these areas due to both conducted and radiated interference.
Technical Data
| Model | AC/DC TIG 200 Pulse Pro Touch welding machine |
| Output current (TIG / MMA) | 5 - 200 A / 30 - 160 A |
| Duty cycle TIG (40°C) | 25% at 200 A / 60% at 150 A / 100% at 120 A |
| MMA duty cycle (40°C) | 25% at 160 A / 60% at 110 A / 100% at 90 A |
| Duty cycle TIG AC (40°C) | 25% at 200 A / 60% at 150 A / 100% at 120 A |
| Protection class | IP21S |
| Mains voltage | 1 x 230 V AC |
| Mains frequency | 50 Hz |
| Open circuit voltage (TIG DC and MMA / TIG AC) | 68 V / 48 V |
| Maximum mains current (I1max) | (TIG / MMA) | 28 A |
| Maximum effective mains current (I1eff) | (TIG / MMA) | 15,6 A |
| Machine weight | 17.5 kg |
| Dimensions L x W x H (mm) | 450 x 245 x 430 |
| Mains connection | CEE 7/7 Schuko plug |
| Standards | IEC 60974-1; EN 60974-10 (Class A) |
| Certified by | TÜV Rheinland |
Scope of delivery
- 1 x STAHLWERK AC/DC TIG 200 Puls Pro Touch Welding Machine
- 1 x Professional TIG welding torch "WP-26 FR" / 3-meter hose set with remote control. Flexible torch head and kink protection on 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, 1.6 mm
* The pre-assembled accessories shown in the welding torch illustration are included in the 8-piece set. - 1 x gas connection hose with quick-connect coupling, 5 m
- 1 x ground clamp with 3 m cable and 13 mm pin connector
- 1 x quick-connect gas pressure regulator, including O-ring
- 1 x TIG welding rods ER70S G3 steel
- 1 x TIG welding rods ER307Si, high-alloy stainless steel
- 1 x TIG welding rods ER4043Si5, high-alloy aluminum
- 2 x WL15 gold tungsten electrodes (1 x 1.6 mm, 1 x 2.4 mm)
- 1 x TIG foot pedal, Puls Pro, with 4 m cable
- 1 x 26-piece TIG wear parts set
- 1 x slag hammer
- 1 x Wire brush
- 1 x protective cover
- 1 x Pressure Regulator
- 1 x Professional welding helmet
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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.