I'm thinking of buying a millermattic 140 mig welder if it's not big enought the 180 should be but for money reasons i'de rather get the 140. I want to weld minor things maybe a little exhaust work. I have a 3inch Thermal Stainless steel exhaust that need some flanges or o2 bungs welding to it will it be enough ? It will be used for oil pan welding for my turbo return line ? valve cover welding ? and make my own Intercooler piping eaither SS with a spool gun i may try to do it in aluminum acording to there website there minimum for aluminum is the same size as what i will be welding (1.2mm) What wont the 140 be able to handle. (I'm NEW to welding)

 

Any help would be greatly appricated

 

Get the largest welder that you can actually afford. Do you have a 230 outlet or just a regular 110 wall outlet? I have the Millermatic 140 and wish that I had saved up for something a bit larger. It works well for exhaust and other thin wall stuff like bodywork. but It becomes a pain trying to get a weld on thicker metal. Prepwork becomes very important for the thicker stuff if you want it to hold. I would say anything from 20guage to 1/8 you should be fine with the 140.

 

Well i'm in Electrician so adding a 230 volt plug is not a problem. So if i get a bigger for like the 180 ill have an easer time doing things like my return line for my turbo (an fitting in my oil pan) or valve cover welding.

 

basically the smaller one will get you by with those things for the most part. but eventually you will wish you had gotten the larger welder.