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Röhr SMINI-120NI ARC 2 in 1 Welder Inverter Gasless 120 Amp DC Anti-Stick Portable Welding Machine Hot Start MMA IGBT 240V AC - Variety of Accessories Included

4.7 4.7 out of 5 stars 259 ratings

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  • 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
  • Includes a storage box for your welder and acessories - earth clamp, clipping hammer and wire brush
  • For experienced and DIY users alike with it's intuitive design

From the brand


Product Description

When it comes to designing and manufacturing welders, Röhr have 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 vehicle's, 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!

SMINI Welder

The SMINI-120NI 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 overall footprint. Inverters dramatically reduce the power required to weld by increasing efficiency by 30% and they produce a consistent power supply giving you the most stable welding arc.

Perfect for a Wide Variety of Welding

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

Dual "2-in-1" Portable Functionality

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

Specifications

  • Runs off a Standard UK Plug 240V AC
  • Input Current 21a / Output Current 20a - 120a
  • Duty Cycle 60% / Power Factor 0.73
  • Transfer Efficiency over 85%
  • Frequency 50Hz - 60Hz
  • Weight : 2.3 Kg / Dimensions: 21 x 10.5 x 14 Cm
  • Insulation Grade F / Housing Protection Grade IP21
  • Working Voltage 24.8V / No-load Voltage 60V / No-load Loss 40W
welder

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.

hot start

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.

Anti Stick

Anti-Stick

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

MMA welding

MMA Arc Welding

MMA is electrode welding with a coated electrode.

Welder machine stick weld clamp

Röhr Welders Come with a Variety of Accessories

The welding machine arrives with a secure lock carry case to store your Röhr Welder with the range of accessories to suit your welding needs. The welder comes with an MMA stick welding clamp (2 metre cable), earthing clamp (1.5 metre cable), long reach strap and wire brush. Also, the unit has a 1.5m electric cord so you can position your welder in a convenient place.

Welder machine stick weld clamp

Stick Weld Clamp 2m

Gasless welder eathing clamp

Earthing Clamp 1.5m

portable rohr welder accessories

Carry case and accessories

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Customer Reviews
4.7 out of 5 stars 259
4.6 out of 5 stars 194
4.6 out of 5 stars 332
4.6 out of 5 stars 332
4.2 out of 5 stars 195
Type ARC Welder ARC Welder ARC Welder ARC Welder 4-in-1" Combo Welder
Output Current (A) 20 - 120 20 - 140 20 - 180 20 - 220 20 - 200
Power Input UK 3 Pin Plug UK 3 Pin Plug UK 3 Pin Plug UK 3 Pin Plug UK 3 Pin Plug
Duty Cycle (%) 60 60 60 60 60
TIG Function
ARC Function
Dual AC / DC
Variable Sine Wave
2T / 4T Modes

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Röhr SMINI-120NI ARC 2 in 1 Welder Inverter Gasless 120 Amp DC Anti-Stick Portable Welding Machine Hot Start MMA IGBT 240V AC - Variety of Accessories Included


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Röhr SMINI-120NI ARC 2 in 1 Welder Inverter Gasless 120 Amp DC Anti-Stick Portable Welding Machine Hot Start MMA IGBT 240V AC - Variety of Accessories Included
RÖHR Röhr SMINI-120NI ARC 2 in 1 Welder Inverter Gasless 120 Amp DC Anti-Stick Portable Welding Machine Hot Start MMA IGBT 240V AC - Variety of Accessories Included
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PriceCurrently unavailable.-25% £101.45
Was:£135.99
£51.99£96.00£106.35£14.97
Delivery
Get it as soon as Tuesday, Feb 18
Get it 20 – 24 Feb
Get it 28 Feb – 10 Mar
Get it as soon as Tuesday, Feb 18
Customer Ratings
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Customer reviews

4.7 out of 5 stars
259 global ratings

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Customers say

Customers appreciate the welder's value for money, compact size, and weldability. They find it easy to use and produce good welds for a small machine. The build quality is praised as well-made and stable. The power output is also appreciated, with customers finding it performs well using 1.6mm rods on the lowest power setting.

AI-generated from the text of customer reviews

43 customers mention ‘Value for money’43 positive0 negative

Customers appreciate the value for money of the tool. They find it a great little piece of equipment that does everything it says it will do, and is an impressive little thing with just as much power as a bigger one. It's helpful for DIY projects and even more advanced projects, and ideal for site work.

"...This is a lovely little bit of kit for the price, and for smaller jobs (that is jobs with thinner metals like car bodies) this is extremely easy to..." Read more

"...I haven't welded anything for about 20 years and not only was i shocked at the price but also the ease of use...." Read more

"...at this price,,its very very small but well built, lightweight, no fancy screens, just a power knob, strikes and welds perfectly, lovely neat welds..." Read more

"Fantastic item for the money" Read more

38 customers mention ‘Compactness’34 positive4 negative

Customers appreciate the compact size of the welder. They find it suitable for smaller jobs and easy to transport. The welder fits snugly into its box, performs well considering its small size, and is lightweight.

"...imagine that it is a great little starter machine and ideal for the occasional or hobby user. Highly recommended." Read more

"...It's tiny, weighs less than my cat and is considerably easier to carry about...." Read more

"...of 50mm x 25mm x 3mm rectangular box section and this small but compact welder has stood up to the challenge...." Read more

"Good little welder, does a good job considering the size, light to carry and use" Read more

33 customers mention ‘Weldability’33 positive0 negative

Customers find the welder easy to use and producing good welds for a small machine. It's compact and portable, making it suitable for DIY projects. The welder is also described as an efficient and cheap tool.

"Great little inverter welder. I haven't welded anything for about 20 years and not only was i shocked at the price but also the ease of use...." Read more

"Good little welder, does a good job considering the size, light to carry and use" Read more

"...fancy screens, just a power knob, strikes and welds perfectly, lovely neat welds, screens a bit diy, (for me) but c,mon, under £60????dunno how they..." Read more

"...It was so small I thought it was a toy, but it can indeed weld very well! Just for the craic I welder 2 bits of 2.5mm angle iron together...." Read more

22 customers mention ‘Build quality’19 positive3 negative

Customers like the build quality of the welder. They say it's well-made, compact, and has a great duty cycle. The welder delivers power and stability.

"...box section and this small but compact welder has stood up to the challenge. I am really glad I bought it and I would highly recommend it to everyone." Read more

"...answer is yes, at this price,,its very very small but well built, lightweight, no fancy screens, just a power knob, strikes and welds perfectly,..." Read more

"...It coped admirably and did a grand job. The power output seems to be equivalent to what I used to get from old and heavy arc welders...." Read more

"...Really good quality build. Cables are a good length and extremely well made...." Read more

20 customers mention ‘Power’20 positive0 negative

Customers are satisfied with the power of the arc welder. They say it performs well using SIP welding rods 1.6mm and 2.5mm on about 40amps. It's compact and lightweight, yet has a powerful punch.

"...It comes with a little fold together mask which works fine for little jobs...." Read more

"It does the job! Plug in and go. Not sure what rods I was using, 2mm? (Was given a bundle)...." Read more

"...2 day delivery - next day if you order before 2pm Performed very well using SIP welding rods 1.6mm on computer chair about 60 amps..." Read more

"...Amazing little thing and it has just as much power as a bigger and much more expensive model. And it all folds away with a carry case...." Read more

19 customers mention ‘Ease of use’19 positive0 negative

Customers find the product easy to use and set up. They mention it's small and compact, making it convenient to carry around. The instructions on setting up the welding unit are clear, and the product is a joy to use.

"...(that is jobs with thinner metals like car bodies) this is extremely easy to use and a lot les hassle to cart around than the larger, more..." Read more

"...Very easy to strike an arc with it and the old skills were all flooding back in no time...." Read more

"...at how small it was but I was surprised and delighted at how easy it was to operate it...." Read more

"It does the job! Plug in and go. Not sure what rods I was using, 2mm? (Was given a bundle)...." Read more

10 customers mention ‘Accessories’10 positive0 negative

Customers appreciate the included accessories. They find the kit great and easy to set up, with all cables included. The carrying case is convenient for them.

"...good for heavy everyday use but for emergency / low use diy user great piece of kit without taking up much space in the garage" Read more

"...And it all folds away with a carry case. Couldn't really ask for much more out of a welding machine...." Read more

"...box and it never missed a beat I would recommend this welder comes with all the bits kit only one down side is the mask buy a proper one I have to..." Read more

"...pleased with thee compactness of the unit and its accessories all contained in the carrying case provided with the unit...." Read more

7 customers mention ‘Lightweight’7 positive0 negative

Customers appreciate the lightweight and portable design of the tool.

"Good little welder, does a good job considering the size, light to carry and use" Read more

"...answer is yes, at this price,,its very very small but well built, lightweight, no fancy screens, just a power knob, strikes and welds perfectly,..." Read more

"It's quality wise for the price, lightweight and it really has power." Read more

"Brilliant Little Welding Machine Very Portable And Extremely light, welded 2 inch box section no problems for hours, super happy highly recommended." Read more

Easy to use.
5 out of 5 stars
Easy to use.
It does the job! Plug in and go. Not sure what rods I was using, 2mm? (Was given a bundle). I'm not a welder but have tried in the past using old machines. This is a tiny welder but as a novice I found it very easy to use. Take it out of the case, throw the supplied mask away, plug in the earth lead and rod holder and start welding. I did invest in an auto darkening helmet which is amazing. I bought the welder in order to modify a boat trailer, and it's already paid for itself.Once I've completed the trailer I'll be looking for more jobs, maybe I'll make some garden sculptures!
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Top reviews from United Kingdom

  • Reviewed in the United Kingdom on 31 July 2023
    I was a little suspect of whether this little welder would be any good as it i8s so cheap. I read all the reviews and thought I'd risk it. I have taught Design for many years, done up many old cars and made many metal things over the years, all with what would be considered 'better quality' kit, but I was NOT disappointed. This is a lovely little bit of kit for the price, and for smaller jobs (that is jobs with thinner metals like car bodies) this is extremely easy to use and a lot les hassle to cart around than the larger, more industrial machines I usually use. Also, I would imagine that it is a great little starter machine and ideal for the occasional or hobby user. Highly recommended.
    3 people found this helpful
    Report
  • Reviewed in the United Kingdom on 9 April 2021
    Great little inverter welder. I haven't welded anything for about 20 years and not only was i shocked at the price but also the ease of use. It's tiny, weighs less than my cat and is considerably easier to carry about. It comes with a little fold together mask which works fine for little jobs. Very easy to strike an arc with it and the old skills were all flooding back in no time. I suspect it might not be great for big jobs, it's definitely a home use model but as that's what I'm using it for it's great for me.
  • Reviewed in the United Kingdom on 4 May 2022
    I just welded, with 1.6mm rods a 1mm piece of stainless steel tubing to another!

    There are few questions and mostly incorrect answers about this 120 amp welder and it's 13 Amp fuse:
    Let me make this crystal clear for everyone "guessing and writing false info without knowing real facts":

    This welder does NOT say 120 Amps "AC" does it? NO it doesn't... just look at the title again please!
    It CLEARLY STATES 120 amps "DC"!
    UK (and the others) plug sockets use AC = Alternating current
    DC means direct current
    Something must be happening inside mustn't it? and it must be within the laws of physics! So read on:
    Now, as it happens, even AC/DC info is here is just to highlight the fact to READ THE TITLE PROPERLY

    The absolute maximum fuse you would put in a UK plug for a residential socket is 13 amps, not 120 amps:
    HOLD FIRE! Am I agreeing with the incorrect answers on here? Erm... No, sorry, I'm not... READ AND LEARN
    So how does this work, without blowing a 13 amp AC fuse then?
    First it changes the AC voltage to DC... Would this still kill a 13 amp fuse? Yes but something is happening!
    Second It drops that DC voltage to about 25 volts... Even more is happening now

    Now, to make it simpler, let's momentarily drop the fairly irrelevant AC/DC
    A "240 volts" 13 amp fuse CAN handle "25 volts" at 120 amps
    Oh gosh! This guy might know some FACTS!

    Let's make some home observations shall we?
    Go and look at a 3,000 watts kettle (make a cuppa in fact!). Low and behold it will have a 13 amps fuse.
    It only needs that because 3,000 Watts divided by 240 volts = 12.5 amps (it's called a sum!)
    12.5 amps is less than 13 amps isn't it?

    Let's do the welder:
    "25" (not 240) volts times 120 amps = 3,000 Watts... Has a similarity penny dropped?
    3,000 watts only needs a 12.5 amps fuse doesn't it, when it all starts at the socket at 240 volts and works down to a lesser voltage at higher amps... Less than a 13 amps 240 volts UK plug socket fuse in the end!

    "Watts are a universal measurement" (no time to explain here)

    So when you see the title of 120 amp welder and it even says "DC" then you 100% know that, because all UK sockets are AC, then something MUST BE CHANGING INSIDE mustn't it!
    No physics being re-written, no warp drive, no unicorns (sorry believers), just plain and simple FACTS of DROPPING THE VOLTAGE FIRST!

    If you feel like posting some incorrect info please have a look at the readily available facts on university and professional electrician sites on the internet.

    Enjoy the brew, and I hope you didn't plug the kettle into a three phase industry power outlet or join you and your neighbour's houses together to get the 3,000 watts power!
    35 people found this helpful
    Report
  • Reviewed in the United Kingdom on 22 June 2021
    I bought this welder to work on a project for my son. The last time I used a welder was 44 years ago as a 2nd year sheet metal worker. I unpacked this welder and was surprised at how small it was but I was surprised and delighted at how easy it was to operate it. I have made and welded spindles and a frame of 50mm x 25mm x 3mm rectangular box section and this small but compact welder has stood up to the challenge. I am really glad I bought it and I would highly recommend it to everyone.
    One person found this helpful
    Report
  • Reviewed in the United Kingdom on 20 May 2023
    It does the job! Plug in and go. Not sure what rods I was using, 2mm? (Was given a bundle). I'm not a welder but have tried in the past using old machines. This is a tiny welder but as a novice I found it very easy to use. Take it out of the case, throw the supplied mask away, plug in the earth lead and rod holder and start welding. I did invest in an auto darkening helmet which is amazing. I bought the welder in order to modify a boat trailer, and it's already paid for itself.
    Once I've completed the trailer I'll be looking for more jobs, maybe I'll make some garden sculptures!
    Customer image
    5.0 out of 5 stars
    Easy to use.

    Reviewed in the United Kingdom on 20 May 2023
    It does the job! Plug in and go. Not sure what rods I was using, 2mm? (Was given a bundle). I'm not a welder but have tried in the past using old machines. This is a tiny welder but as a novice I found it very easy to use. Take it out of the case, throw the supplied mask away, plug in the earth lead and rod holder and start welding. I did invest in an auto darkening helmet which is amazing. I bought the welder in order to modify a boat trailer, and it's already paid for itself.
    Once I've completed the trailer I'll be looking for more jobs, maybe I'll make some garden sculptures!
    Images in this review
    Customer image
    4 people found this helpful
    Report
  • Reviewed in the United Kingdom on 17 July 2023
    Good little welder, does a good job considering the size, light to carry and use
  • Reviewed in the United Kingdom on 25 August 2020
    bought to replace an old, but very good welder, chose the mini a for home use you don't need more power, I build trikes, bikes, custom cars, a 120a will do it all,,, but at this low price??
    answer is yes, at this price,,its very very small but well built, lightweight, no fancy screens, just a power knob, strikes and welds perfectly, lovely neat welds, screens a bit diy, (for me) but c,mon, under £60????dunno how they make such a decent performing welder this small and good tbh, im a convert to this brand....
    10 people found this helpful
    Report
  • Reviewed in the United Kingdom on 8 July 2023
    This is the 4th rohr welder I've bought. It was so small I thought it was a toy, but it can indeed weld very well! Just for the craic I welder 2 bits of 2.5mm angle iron together. Perfect. I wouldn't say you could weld all day with it given its duty cycle, but for small repairs its perfect.
    2 people found this helpful
    Report

Top reviews from other countries

Translate all reviews to English
  • Massimo Vagliasindi
    5.0 out of 5 stars Una meraviglia
    Reviewed in Italy on 21 August 2023
    Quando è arrivata viste le ridotte dimensioni pensavo di aver preso una fregatura,invece quando l'ho usata ho apprezzato moltissimo le caratteristiche di questa saldatrice, che permette veramente un ottimo lavoro. Fonde alla perfezione l'elettrodo e regolando la distanza d'uso si ha anche una buona penetrazione della fusione dei pezzi.
  • piercarlin
    5.0 out of 5 stars Ok principianti
    Reviewed in Italy on 31 July 2023
    Va benone. Per quello che costa, son soldi spesi bene. Ovviamente è dedicata ad hobbisti. Ma credo possa spingersi anche oltre
  • Andrea
    5.0 out of 5 stars Saldatrice ottima
    Reviewed in Italy on 30 April 2023
    Prodotto ok per principianti e fai da te w oltre.