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Functions
- The STAHLWERK MTM-200 ST combination welder is a powerful 3-in-1 inverter with 200 A and combines the TIG | MIG MAG | MMA welding processes in one device. The welding machine is also suitable for processing cored wire and for welding thin sheet metal, but not for welding aluminum.
- DC TIG welding - direct current (DC). Welding of almost all metals, such as steel, stainless steel, copper, brass and many more. Note: Not suitable for aluminum - an AC/DC device is required for this.
- 2T/4T (TIG/MIG/MAG) - determines the control of the operating mode and offers extended control over the current flow. In 2T mode, high-frequency ignition (HF) remains active until the button on the torch 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.
- Gas follow-up (TIG) - protects the tungsten electrode from wear and protects the weld seam from oxidation. The parameters can be set individually. The gas overrun specifies how long the shielding gas should flow after ignition.
- Lightweight & compact design and innovative IGBT transistors of the latest generation save space and weight compared to the old MOSFET technology. No more heavy carrying!
Features & advantages
- HF ignition (TIG) - enables non-contact ignition and ensures significantly better welding results. No LIFT ARC, no strike ignition!
- Highest efficiency & performance - single-phase alternating current (230V) supplies the device and allows an output power of real 200 amps for TIG | MIG MAG | MMA.
- Smart cooling & overheating protection - State-of-the-art technology, integrated overheating protection and high-performance cooling enable maximum power to be called up.
- TIG (tungsten inert gas) - shielded arc welding with inert gases such as argon 4.6 (99.996 %). An arc is created between the tungsten electrode and the workpiece in an argon bell. This melts the material and any filler material added. A weld seam is created.
- MMA electrode welding | ARC welding - a universal welding process. An electric arc melts the electrode to form the weld seam.
- Hotstart - Automatic voltage increase at start for better ignition results.
- Anti-stick - Automatic shutdown of the welding current when the electrode sticks, enabling easy removal.
- MIG MAG - Gas metal arc welding with direct current (DC). Welding can be carried out with inert (MIG, e.g. argon) or active (MAG, e.g. CO2) gases. Gas and welding wire come out of the torch head and enable welding work to be carried out with just one hand.

- Flux-cored wire - all our ST series devices can use flux-cored wire. This enables welding without shielding gas. The polarity of the welding machine can simply be reversed for this purpose.
- Automatic wire feed - the speed of the wire feed is automatically regulated by the set welding current and by selecting the wire thickness used on the device.
- Current voltage (volts) - Variable voltage control to manually adjust the penetration and burn-off of the wire. This allows the different properties of a wide range of materials to be taken into account.
- 4 roller drive - reliable and powerful wire feed. Thanks to 4 drive rollers, even thicker wires are fed continuously and safely.
- Manual wire feed - no more loss of gas or laborious pushing of the wire through. If a new wire reel is to be fed through the hosepack, this is done completely automatically using the wire feed button.
- Wire spool - Commercially available wire spools from 1 kg to 5 kg can be processed. The spool mandrel can accommodate 16 mm and 50 mm spools.
- Wire drive roller - different wire thicknesses can be used by simply changing the drive roller from 0.6 | 0.8 | 1.0
Technical Data
| Model | STAHLWERK MTM-200 ST welding machine |
| Output current (TIG | MMA | MIG) | 10-200 A (WIG | MMA) | 40-200 A (MIG) |
| Duty cycle TIG (40°C) | 15% at 200 A / 100% at 77 A |
| MMA duty cycle (40°C) | 10% at 200 A / 100% at 63 A |
| MIG duty cycle (40°C) | 15% at 200 A / 100% at 77 A |
| Protection class | IP21S |
| Mains voltage | 1 x 230 V AC (+- 15%) |
| Mains frequency | 50/60 Hz |
| Maximum mains current (I1max) (TIG | MMA | MIG) | 26,8 | 41,7 | 35,8 A |
| Maximum effective mains current (I1eff) | (WIG | MMA | MIG) 10.4 | 13.2 | 13.9 A |
| Weight | 11.9 kg |
| Dimensions L x W x H (mm) | 440 x 255 x 360 |
| Mains connection | CEE 7/7 Schuko plug |
| Standards | IEC 60974-1; EN 60974-10 (Class A) |
| Certified by | TÜV Rheinland LGA Products GmbH |
| WEEE reg. no. DE | 85577200 |
Scope of delivery
- 1 x STAHLWERK MTM-200 ST welding machine
- 1 x WP-26F professional TIG welding torch / 3 m hose package with flexible torch head and kink protection on the gas connection
- 1 x AK-15 professional MIG welding torch / 3 m hose package with Euro central connection
- 2 x wire guide rolls 0.8 & 1.0 mm with 'V' profile (already installed in the device)
- 2 x wire guide rolls 0.6 & 0.8 mm with 'V' profile
- 1 x earth cable 3 m
- 1 x electrode holder 3 m
- 1 x wire brush, 1 x slag hammer
- 1 x gas connection hose with quick coupling 5 m
- 1 x Snap-on connection set
- 1 x protective cover
- 1 x MIG MAG 15AK wear parts set 28 pieces
- 1 x TIG ER70S G3 steel welding rods
- 1 x Welding rods ER307Si TIG high-alloy stainless steel
- 1 x tungsten electrodes / welding electrodes
- 1 x MIG MAG premium welding wire ER70S-6 SG2 S100/D100 wire reel
- 1 x pressure reducer
- 1 x Professional welding helmet
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Manufacturer information
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.
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