
Functions
- MMA electrode welding / ARC welding as 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.
- A current recommendation can be selected using the practical reference current function (material thickness 1.0-10.0 mm and electrode diameter 1.6-5.0 mm). The device then automatically sets the appropriate welding current - the function is deactivated for manual readjustment.
- The ARC 200 MD Digital has a lift TIG mode (DC TIG) and can therefore be quickly converted to a DC TIG welding machine with the optionally available WP-17V universal lift TIG torch.
- Lightweight & compact design: Only 3.4 kg weight and dimensions of 269 x 116 x 187 mm. Innovative IGBT transistors save space and weight compared to the old MOSFET technology. No more heavy carrying!
- The welding current and all other set parameters are easy to read on the clear digital display. The welding current can be set from 10-200 A simply using the operating buttons.
- IGBT technology: The latest and most modern transistor technology enables maximum performance and duty cycle at full power! No transformer, no MOSFET, state-of-the-art IGBT. The high switching frequency ensures stable welding currents, thermal stability and high efficiency with flexible, mobile usability.
- Highest efficiency & performance: Single-phase alternating current (230V) supplies the device and allows an output power of 200 amps.
- The tool and equipment trolley included in the scope of delivery offers space for the welding machine and many accessories.
Features & benefits
- Hotstart (optimized start): Automatic voltage increase during ignition improves the start quality, reduces electrode sticking and warms up the start of the seam faster.
- Anti-stick (against sticking): Automatic lowering of the welding current when the electrode sticks enables easy release and prevents overheating/annealing of the electrode.
- ARC-Force stabilizes the arc with short arc lengths and increases penetration - particularly helpful with cellulose and basic electrodes.
- Smart cooling and overheating protection (maximum power can be called up): High-performance cooling with integrated overheating protection for reliable continuous operation and safe power output.
- VRD (Voltage Reduction Device). Manual on/off switching of the VRD function enables the output voltage of the welding machine to be reduced to a safe level to protect the operator when touching the electrode while welding is not taking place.
- Electronic protection package: Overheating, overvoltage and overcurrent protection increase service life and operational safety.
- Demand-controlled fan: Fan only runs when required - resulting in less dust ingress and lower noise levels.
- Robust ST-Guard housing: Ergonomic, shock-resistant, with easily accessible control panel for use on construction sites/workshops.
- 230 V operation: Single-phase connection 230 V / 50-60 Hz, fuse protection with C characteristic as per manual.
Note: The appliance is not intended for use in residential areas where the power supply is provided by 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 ARC 200 MD Digital |
| Process | MMA / E-hand, optional DC-Lift-TIG |
| Output current MMA | 10-200 A |
| MMA duty cycle (40 °C) | |
| 10 % at 200 A | |
| 60 % at 82 A | |
| 100 % at 63 A | |
| Mains voltage | 1 x 230 V AC (±15 %) |
| Mains frequency | 50 / 60 Hz |
| Max. Mains current (I₁max) | MMA 40 A, WIG 28 A |
| Maximum effective mains current (I₁eff) | MMA 12.6 A, WIG 8.8 A |
| Protection class | IP21S |
| Dimensions (L x W x H) | 269 x 116 x 187 mm |
| weight | approx. 3.4 kg |
| Mains connection | CEE 7/7 Schuko plug |
| Standards | IEC 60974-1; EN 60974-10 (Class A) |
| Certified by | SGS Standards Technical Services Co, Ltd. |
| WEEE reg. no. DE | 85577200 |
Scope of delivery
- 1 x STAHLWERK ARC 200 MD Digital
- 1 x ground cable 3 meters
- 1 x electrode holder 3 meters
- 1 x protective cover
- 1 x slag hammer
- 1 x wire brush
- 1 x professional welding helmet
- 1 x rod electrodes AWS E6013RR thick rutile coated 2 mm x 300 mm
- 1 x STAHLWERK tool and equipment trolley
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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.