- Thread starter JOEPRO
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Ive mentioned a few times over the lst few weeks Id bought one for 177 and it does well for what it is ,, paid for its self day one so if it explodes so be it , they have a spares depot and a service set up in Southampton according to the flea bay listings , Josh de Lisle dropped an answer to a question and three years down the line his is going well still ... must lift the case on mine and check the connections , and probably add a sheet of something where the cct board is as standoffs on the case , or a few stick on rubber feet , or the likes .
Meters are tragic , bt it welds well for what it is, they claim a low of 50 amps , but I welded a BMW mini floor pan with it no prob and on 3mm roll cage pipe it was buttery smooth.
JOEPRO
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Got home a few mins ago and quickly set up the Rohr.
Set the power and wire speed both at 5 and it lays lovely spatter free welds right out of the box.
Feels every bit as good as my R Tech 180. Indeed it's got an extra feature over it with a red button to advance the spool. This is handy for loading as you don't lose gas or have to hold the trigger to feed.
I can't hear a gas leak inside and haven't opened it yet but plan to tomorrow night.
Set the power and wire speed both at 5 and it lays lovely spatter free welds right out of the box.
Feels every bit as good as my R Tech 180. Indeed it's got an extra feature over it with a red button to advance the spool. This is handy for loading as you don't lose gas or have to hold the trigger to feed.
I can't hear a gas leak inside and haven't opened it yet but plan to tomorrow night.
JOEPRO
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Yes torch feels decent it's a Euro MB15 torch type.
I have also ordered a genuine Binzel MB36 4 metre torch for it. The MB15s get smokey hot when doing fab work so the larger torch should run cooler overall.
JOEPRO
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Islander71
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Thought I'd try my new Rohr 200mi on some heavy metal to see what it would do. Its with 0.8 wire, pure CO2. Voltage dial set to 8.5 (goes up to 10), wire speed at 7 - steel is 9mm thick The other photo is 1mm steel. Am quite impressed.
JOEPRO
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What size of a C02 bottle do you have?
It's interesting to me as I am sure I had pure C02 before also and I had sold that SIP welder with bottle. Then I got my R Tech and Hobbyweld MIG bottle with Argon + 5% Co2 + 2% Oxygen mix.
However, it leaves a brownish tinge on welds, probably the oxygen content. And that was not an issue with C02 that I recall.
I need to buy a second MIG bottle now so would consider C02 unless someone here advises otherwise!
Islander71
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Not sure the size, its a standard beer keg bottle. Surprising amount of gas in them.
spaffmonkey
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Parcelforce seem brilliant at loosing parcels these days.
JOEPRO
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I have been using this Rohr MIG some more and what a great welder it is. Very powerful, very smooth. Every bit as good as my R Tech in terms of the welds it lays and ease of use.
Highly recommended especially when it's on offer it's a fantastic welder for the £ can't beat it. I think anyone looking for their first MIG to repair their cars etc should be looking at this Rohr MIG and a rent free Gas Bottle.
Highly recommended especially when it's on offer it's a fantastic welder for the £ can't beat it. I think anyone looking for their first MIG to repair their cars etc should be looking at this Rohr MIG and a rent free Gas Bottle.
chrismac
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Just goes to show that maybe for the hobby user, infrequent user, some of these cheaper machines could possibly work out a good buy, we all know its not top end components inside the casing, its very much a case of is £1000 pounds sitting under a bench unused for months really money well spent when £300 is doing okay for the money, lets hope it sees you good long term.
JOEPRO
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The other way to look at it too is that many of the components inside are off the shelf items. There are no fancy LED displays to go wrong and scrap the welder. I think if something did go wrong with a control knob or internal component the parts could be easily sourced on ebay.
JOEPRO
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Those welds look a bit spattery. I think your wire speed was too slow.
Like any MIG welder if you change the power / voltage then you will need to dial in the wire speed by trial and error to get it running really nice. I do this by welding with one hand and the other on the wire feed dial.
I adjust the wire feed from one extreme to the other nothing the difference then go somewhere in the middle and further listen and tune it in until its as best as it can be.
I used to use only CO2 but when I switched to argon mix it was a revelation. Nicer welds, lett spatter, less cleanup & better on thin metal. I still have a CO2 bottle because I get nothing for returning it. It only gets used when I run out of mix & on those few occasions I look forward to getting back to argon mix!
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Most likely the choice of shielding gas, straight CO2 tends to create more spatter than ar/co2 mix.
spaffmonkey
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Not so long ago my Jasic 250mig I use at work stopped working after a pop and cloud of smoke. I took it round to very helpful electrician round the corner. When we stripped it apart it also had rohr circuit boards fitted inside. It turned out to be a relay had burnt out which he was able to unsolder from the board and replace.
Main issue seemed to be the large build up of metal fillings the fan had drawn into the welder. Lesson learned I now on a monthly basis give the welder a good clean out.
