Thread: Cheap welder $39

I bought a mecpro 100 amp mig from repco for 150 comes with 3 yr warranty. Works a treat. Figure for the money can't go wrong.

Originally Posted by sheerluck

I've had a look at that one, as I need to do sone TIG welding, and was a little amused by this :



You think they've got their definition of metals a bit confused?

Your 'all in one' units like this will do stick (DC) TIG and plasma... but don't expect MIG or aluminium TIG out of the same unit.

MIG's use a whole different power source, and you need the AC current to do aluminium.

Plasma will cut ANY conductive material, and has the benefit of being able to 'stack' cuts. Just keep in mind your aluminium rated 'quality cut' is approx half that of a 'quality cut' for steel.
And if they don't give you accurate severence or quality cut ratings for that unit, walk away. 40A should get approx 8mm quality cut on steel, 100A can get you as thick as 25mm.