Röhr Mini-220PI MMA ARC Inverter Welder 240V / 220amp DC


(10 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-220PI 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 – 220a
  • Duty Cycle 60%
  • Transfer Efficiency over 85%
  • Frequency 50Hz – 60Hz
  • Power Factor 0.73
  • Insulation Grade F / Housing Protection Grade IP21
  • Working Voltage 27.8V / No-load Voltage 56V / No-load Loss 40W

In The Box

  • Rohr Mini-220PI 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

10 reviews for Röhr Mini-220PI MMA ARC Inverter Welder 240V / 220amp DC

  1. grahamlaw.law

    great little welder lots of power far exeded my expectations would purchase direct from your company in the future ,i purchased this machine through ebay which was fine but may just come direct in future thanks very much ! g law

  2. ivor.campbell1

    My first welder, might be my last given its excellent performance. my buddies that know about these things say it is ,1/ bloody tiny followed by 2/ oh here that welds really nice, 3/ how much you say it cost? really! also worth pointing out that it is an easy rig to use if you are teaching yourself.

  3. Paul Thomas

    Bought this welder to replace one I lost in Spain, very happy this is a better machine at half the price,already recommended to loads of people.

  4. Stephen Davies

    Great customer service helpful and knowledgeable. Great item works perfectly for what I require. 

  5. Karol Brudzinski

    Very good product at low price, great service and quick shipping

  6. Jimmy Mc conologue

    Lightweight and versatile 

  7. Rene fogerty

    Excellent product easy to use. 

  8. Vinny Morris

    Great product arrived the day after ordering well packaged and as described

  9. Thomas Carline

    This welder surpassed my expectations. It is accurate and welds nicely. Reliable and well built. Compact for moving around my farm. I repaired/welded two broken gates within minutes of getting it out of the box. UnionMart is a reliable company selling good machinery at very competitive prices. I will be buying from you again.

  10. Peter bowe

    Great little welder

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