Röhr Mini-180PI MMA Inverter Welder 240V / 180amp DC


(6 reviews)
  • 12-month warranty and free to call UK based technical support line
  • Euro torch with a scratch start system
  • Runs off a standard UK 3 pin 13 amp plug
  • Comes with lots of accessories – earth clamp, clipping hammer and wire brush
  • For experienced and DIY users alike with its intuitive design

Whether it’s aluminium bike frames or reviving your passion for steel sculpture, there’s a Röhr for the job and a Röhr for you!

Have a question? Contact our friendly, expert Röhr qualified staff here


The MINI-180PI Gives you Röhr Quality

Exceed your Expectations

Röhr welders are built to last, with high-quality components that will ensure reliability for occasional or regular users. This  Welder uses the latest inverter technologies to dramatically reduce the overall footprint. Furthermore, the MMA ARC Welder dramatically reduces the power required to weld by increasing efficiency by 30%. Therefore, they produce a consistent power supply giving you the most stable welding arc.

The MMA ARC Welder is Perfect for a Wide Variety of Welding

This Inverter Welder is multi-use so you can weld low carbon steel, stainless steel and alloys

Dual “2-in-1” Portable Functionality

The Inverter Welder uses MMA Arc welding which is ideal for most welding needs and is specifically designed to be highly portable due to its ultra-lightweight design and shoulder strap. The unit produces neat welds that leave you in no doubt that this high-quality Inverter Welder is designed by Röhr.

Röhr MMA ARC Inverter Welder

When it comes to designing and manufacturing Inverter Welders, Röhr has extensive, unparalleled knowledge. They combine breakthrough technologies to produce some of the most advanced and capable welding machines on the market.

Röhr welders are easy to use and perfectly suited to experienced and new users alike. You can carry out a huge range of welding including vehicles, fabrication, house maintenance or more unconventional work where specialist materials require more advanced features. Whether it’s aluminium bike frames or a revived passion for steel sculpture, there’s a Röhr for the job and a Röhr for you!


  • Runs off a Standard UK Plug 240V AC
  • Input Current 16a / Output Current 20a – 180a
  • Duty Cycle 60%
  • Transfer Efficiency over 85%
  • Frequency 50Hz – 60Hz
  • Power Factor 0.73
  • Insulation Grade F / Housing Protection Grade IP21
  • Working Voltage 25.6V / No-load Voltage 56V / No-load Loss 40W

In The Box

  • Rohr Mini-180PI Welder
  • MMA Stick Welding Clamp (2m cable)
  • Earthing Clamp (1.5m Cable)
  • Wire Brush
  • Long Reach Strap

The Latest IGBT Technology

IGBT is a bipolar transistor with an insulated gate electrode. This semi-conducting device is being increasingly used in power electronics because it combines the advantages of two transistor types: the easy controls of the field effect transistor and the fast switching and high breakdown voltage of the bipolar transistor. The IGBT also offers some robustness against short circuits because it limits the electrical continuity.

Featuring Hot Start

Hot Start automatically boosts the tension at the ignition of the arc, this function facilitates the electrical arc ignition. After ignition, the unit automatically returns to the pre-set voltage.


This function helps to prevent overheating of the electrode by switching off the welding current when the electrode sticks to the material.

MMA Arc Welding

MMA is electrode welding with a coated electrode.

Customer Reviews

6 reviews for Röhr Mini-180PI MMA Inverter Welder 240V / 180amp DC

  1. colingoodings

    Excellent little machine so portable light and works really well.

  2. Mark Eden

    Fantastic little machine! 
    When it arrived, I was surprised at how small and light it was, this made me a bit dubious – I asked myself if I’d done the right thing when I bought it. 
    However, once I’d unpacked it, read the instructions and connected it up and started welding. –
    the project was welding 10mm reinforcing rod to my gates to strengthen them –
    I realised that the welder is a fantastic bit of kit and did all that I expect a welder to do!
    I am 100% satisfied!

  3. Chris H

    Cracking little welder. Well surprised how capable this small machine is.

  4. Michael Price

    Compact, light and easy to use. Super piece of kit to replace my old heavyweight transformer welder and delivered within 24 hours of ordering.

  5. Stevie Rodden

    Fantastic little sturdy welder I’ve had it a few months now and use it for gates and railings in shop and on site

  6. Stephen minton

    Purchased this item of ebay
    Superfast delivery
    Very well packaged…totally complete with instructions.
    Had to unpack straight away and try it…..
    I was surprised due to the size of the mini 180 pi…it was amazing
    Welded perfectly first time…i also own the rohr mig 250 Mi and that machine is superb so all in all fantastic products wont use anything else..

    Stephen minton

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