Need info on CEM Dual Mig 120

WhoWhatNow · Mar 28, 2012

I just picked this up from CL and I am looking for information. Does anyone have a manual for this. The guy said it was a Harbor Freight welder but it appears to have been made by CEM which I gather is now Cemont out of Italy. There was just enough wire in it to test before I bought is and it does strike an arc. I need a instruction manual and to find a source for tips and a gas gauge.

So far I only have $35 and a gallon of gas into it.

rsanter · Mar 28, 2012

Sounds like a deal at $35
I see them on craigslist and eBay for sale new all the time

Bob

dipper · Mar 28, 2012

i'm gonna take a stab in the dark and say CEM stands for Chicago Electric which is/was
harbor freights flagship brand.

I borrowed a harbor freight welder from my brother and didn't have much luck with it, was just trying to tack some mild steel exhaust pipe together.

I had much better luck with my buddies sears mig welder with shielding gas.

Have you tried the welder out yet?

crewchief888 · Mar 28, 2012

take an old tip down to your local welding supply, they should be able to match one up, but i'd bet lincoln contact tips will work.
they should be able to set you up with a regulator/hose

:beer:

WhoWhatNow · Mar 28, 2012

dipper said:
i'm gonna take a stab in the dark and say CEM stands for Chicago Electric which is/was
harbor freights flagship brand.

I borrowed a harbor freight welder from my brother and didn't have much luck with it, was just trying to tack some mild steel exhaust pipe together.

I had much better luck with my buddies sears mig welder with shielding gas.

Have you tried the welder out yet?

I tried it before I paid. There was just enough wire in it to get an arc. If I can get a tip and nozzle for it I think I will be in business; at least with flux.

As near as I can tell CEM is still doing business as Cemont in Europe. The list a Dual Mig 120 on their website but don't have a manual for it. I may call tomorrow and try to talk to an actual person.

WhoWhatNow · Mar 28, 2012

crewchief888 said:
take an old tip down to your local welding supply, they should be able to match one up, but i'd bet lincoln contact tips will work.
they should be able to set you up with a regulator/hose

That's a great idea. I didn't even think of the LWS. Not used to having local support for anything. Just Lowes and Home Depot. So really nothing.

jpinca · Mar 28, 2012

That looks nicer than the current Harbor Freight Dual MIG.

taumac · May 1, 2012

i dont have a manual for it but as far as tips standard tips work but cant find a replacement nozzle so a redid the end with copper pipe. Ive only used it with flux wire but friend I got it from just found regulator so I might run gas. Regulator is external and will mount to your gas bottle and solenoid is internal. There should be I alittle plastic line coming out the back in which to hook a gas line. Ill be honest with ya its a good little welder but get yourself some .030 tips and some .030 Inerrshield NR-211 and have fun. Ive found parts are hard to come by and its not worth the money in fixing up this one too much. Any CO2 regulator will work on it but I would only get it for if you really what it and use it on the next welder. This the one Im looking at to relace mine at some poin.

http://www.northerntool.com/shop/tools/product_200485145_200485145

PS take welder down to welding shop with ya cause Ive had a problem finding that nozzle and even the ones at HF didnt fit mine so good luck

taumac · May 1, 2012

Last picture why is all the wire hacked up. Your missing your wire guide and your gas line which is the clear line coming from the gromet from the back so in other post I dont know if you can even run gas now. The hose is one piece from the gun all the way to the back of unit. Again I would worry about gas but just use some .030 innershild ( flux core)

WhoWhatNow · May 1, 2012

Those pictures were exactly what I was looking for. Thank you! Possibly the last owner modified it with a different gun. I think I will pull it apart this weekend and see what I can find. I took it to my LWS a few weeks ago and got a new new tip and some 0.035 flux wire for it. That is what was in it when I got it. I loaded the wire the other day and it seemed to run fine without the wire guide. I haven't had a chance to run any beads yet, but it did strike and arc with the new wire. For $35 I'm not complaining. Thanks again for the help.

Need info on CEM Dual Mig 120

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