
Functions
- 3-in-1 combination welding machine - MIG MAG / Lift TIG / MMA
- Pulse function - The pulse function allows aluminum to be welded. Less heat is introduced into the workpiece.
- The 1.6 kW water cooling system enables efficient water circulation and reliable heat dissipation from the hosepack and welding torch. This ensures stable temperature conditions and longer work cycles with a duty cycle (ED) of 100 % during welding.
- MIG MAG - gas metal arc welding with direct current (DC). Welding can be carried out with inactive/inert (MIG: e.g. argon) or active (MAG: e.g. CO2) gases. Gas and welding wire come from one torch head and enable welding work to be carried out with just one hand.
- Digital display - The set welding parameters can be easily read on a clear digital display. The various modes can be set quickly using the intuitive menu.
- Synergic wire feed - The wire feed speed is controlled fully automatically via the welding current.
Features & benefits
- 4-roller drive - A powerful 4-roller drive ensures a reliable wire feed that also transports thicker welding wires continuously and safely during MIG MAG welding.
- IGBT technology - The latest and most modern transistor technology enables maximum power and duty cycle (ED)! No transformer, no MOSFET, state-of-the-art IGBT!
- 2T/4T - determines the control of the operating mode and offers extended control over the current flow. In 2T mode, the ignition remains active until the button on the burner 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.
- Lightweight & compact design - Innovative IGBT transistors save space and weight compared to the old MOSFET technology. No more heavy carrying!
- Smart cooling & overheating protection - Integrated overheating protection and high performance cooling enable maximum power to be called up.
- Intelligent temperature control - The fan is only switched on and off when required. This saves energy and avoids noise emissions.
- ST-Guard housing - ergonomic, robust and reliable. The control panel is easily accessible and intuitive to operate.
Note: The compressor is delivered on a pallet by the DACHSER forwarding company. Please state your mobile phone number when ordering. We need this for the carrier to coordinate the delivery date by phone or SMS!
Note: Please note that additional costs will be incurred if you fail to meet the delivery date agreed with the carrier through your own fault. The carrier will charge 70 euros for each additional delivery attempt.

Technical Data
| Model | STAHLWERK MIG MAG 400 Pro welding machine |
| Output current MIG / MMA | 30-400 A |
| Duty cycle MIG / MMA (40°C) | 100% at 400 A |
| Protection class | IP21S |
| Mains voltage | 400 V AC (+-15%) 3~ |
| Mains frequency | 50/60 Hz |
| Maximum mains current (I1max) MIG / MMA | 24 A |
| Maximum effective mains current (I1eff) MIG / MMA | 24 A |
| Max. weight | 100 kg |
| Dimensions L x W x H (mm) | 1130 x 600 x 1490 |
| Mains connection | CEE plug, 32A, 5-pin |
| Standards | EN 60974-1:2018+A1:2019, EN 60974-10:2014+A1:2015 (Class A) |
| WEEE reg. no. DE | 85577200 |
Scope of delivery
- 1 x STAHLWERK MIG MAG 400 Pro welding machine
- 1 x WF-400 wire feed unit (in separate box)
- 1 x SGB 501W 3 m water-cooled hosepack (Parker Torchology)
- 1 x 7-pin control cable
- 1 x power connection cable 50 mm² with 13 mm pin plug
- 2 x water hose (quick coupling pre-assembled on both sides)
- 1 x gas connection hose (open on both sides with pre-assembled hose clamps)
- 1 x earth clamp 3 m, 50 mm² with 13 mm spike connector
- 1 x hose package holder
- 1 x power nozzles 1x 0.8/1x1.0/2x1.2(1x pre-assembled)/1x1.6 and 1x 1.0A/1x 1.2A/1x 1.6A each
- 1 x wire guide rollers 2x 0.8V/1.0V, 2x 1.2/1.6V(pre-assembled), 2x 0.8U/1.0U, 2x 1.2U/1.6U
- 2 x glass fuses
- 1 x trolley with 2x steerable and 2x fixed castors, holding device for gas cylinder with strap
Note: The compressor is delivered on a pallet by the DACHSER forwarding company. Please state your mobile phone number when ordering. We need this for the carrier to coordinate the delivery date by phone or SMS!
Note: Please note that additional costs will be incurred if you fail to meet the delivery date agreed with the carrier through your own fault. The carrier will charge 70 euros for each additional delivery attempt.
To go with this article we recommend
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.