
Funktions & Components
- MMA / Stick electrode welding - an universal welding process. An arc causes the electrode to melt, forming the weld. No protective gas is needed and can therefore be used flexibly anywhere.
- IGBT Technology - latest transistor technology enables highest power and a duty cycle of 60% at full power. No transformer, no MOSFET, modern IGBT.
- Lightweight & compact design - only 10,3 kg and dimensions of 455 x 220 x 370 mm. Innovative IGBT transistors save space and weight compared to the old MOSFET technology. No heavy carrying!
- Highest efficiency & performance - Three phase current (400 V) supplies the device and allows an output power of real 270 amperes.
Device Features & Benefits
- Hot Arc - Adjustable current increase at start for better ignition results. Prevents the stick electrode from sticking by temporarily superimposing the set welding current and warms up the start of the weld more quickly.
- ARC Force - adjustable spray arc with which the arc width can be continuously regulated.
- VRD - mode in which the no-load voltage is reduced in order to maintain a constant output even with high welding currents.
- Anti-stick - Automatic shutdown of the welding current in case of sticking of the electrode which allows an easy removal. It also prevents annealing of the electrode.
- Smart cooling & overheating protection- modern technology, built-in overheat protection and high-performance cooling allow you to get maximum performance.
- Note: The unit is not intended for use in residential areas where power is supplied 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.


Technische Daten
Output current | 20-270 A |
Duty Cycle | 60 % at 270 A / 100 % at 209 A |
Protection type | IP21S |
Insulation class | F |
Power supply | 400 V AC (+-15%) / 3 ~ (three phase) |
Frequency | 50/60 Hz |
Maximum power input | 15,2 A |
Actual power input | 11,8 A |
Weight | 10,3 kg |
Dimensions L x W x H (mm) | 455 x 220 x 370 |
Mains connection | CEE 16 |
Standards | IEC 60974-1; EN 60974-10 (Class A) |
Lieferumfang
- The STAHLWERK ARC 270 ST IGBT welding device.
- Ground cable 5 meters
- Electrode holder 5 meters
- Chipping hammer
- Wire brush
Note: The units of the latest generation may contain details that differ from the product images shown here. In the new design, the STAHLWERK lettering and the reference to the IGBT technology are omitted, as this is now installed as standard. We will update the pictures as soon as possible.
Note for our UK customers: Please note that import duties apply to goods valued at £135 or more.




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