
Functions
- Flux-cored wire welding (FLUX) - welding without shielding gas. Flux-cored wire welding (FLUX) is based on a similar process to MIG MAG welding with the difference that this process does not require the addition of shielding gas.
- Fully Synergic Welder - Wire feed speed and voltage (volts) are fully automatically controlled by the welding current.
- IGBT Technology - Latest generation transistor technology enables highest power and duty cycle (ED) at full power! No transformer, no MOSFET, state-of-the-art IGBT!
- Lightweight & Compact Design - Innovative IGBT transistors save space and weight compared to old MOSFET technology. No more heavy carrying!
- Highest Efficiency & Power - Single phase AC power (230V) powers the unit and allows output power of true 120 amps.
- Smart Cooling & Overheat Protection - State-of-the-art technology, built-in overheat protection and high performance cooling allow the maximum power to be retrieved.
Features & advantages
- Wire spool - Commercially available wire spools from 0.45 kg to 1 kg can be processed here. The spool mandrel can accommodate 16 mm spools.
- Wire drive roller - the drive roller can be easily changed to accommodate different wire thicknesses of 0.6 | 0.8 | 0.9 | 1.0 mm.
Note: To avoid damaging the device, please note the following: The lock on the wire reel is a bayonet lock. When releasing it, it must first be pressed against the spring and then turned to the left. After inserting the reel, the lock must be pressed in again and then closed to the right.
Note: The device 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.
Note: As soon as the pre-assembled wear parts on the burner are worn, they must be replaced. Please ensure that both the gas nozzle and the nozzle holder are replaced, as they can only be used in this combination. The corresponding wearparts set is available from us.

Technical Data
| Model | STAHLWERK Mini FLUX 120 ST flux cored wire welder |
| Output current | 20 - 120 A |
| Duty cycle (40°C) | 15 % at 120 A | 100 % at 46 A |
| Protection class | IP21S |
| Mains voltage | 1 x 230 V AC |
| Mains frequency | 50/60 Hz |
| Maximum mains current (I1max) | 17,3 A |
| Maximum effective mains current (I1eff) | 6,7 A |
| Suitable for cored wires | Ø 0.6 - Ø 1.0 mm |
| Weight | 4 kg |
| Dimensions L x W x H | 300 x 165 x 270 mm |
| Mains connection | CEE 7/7 Schuko plug |
| Standards | IEC 60974-1; EN 60974-10 (Class A) |
| Certified by | SGS Standards Technical Services Co., Ltd. |
Scope of delivery
- 1 x STAHLWERK Mini FLUX 120 ST cored wire welder
- 1 x FLUX torch hose package 2 m
- 1 x earth cable 1.2 m
- 1 x wire guide rolls 0.6 | 0.8/0.9/1.0 mm (pre-assembled)
- 1 x STAHLWERK MIG MAG premium welding wire - cored wire E71T-GS Ø 0.9 mm S100/ D100 wire reel with 1 kg
- 1 x High-quality wire brush
Matching accessories for this device
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.