Not sure about the U.S but we have the 110v IMIG 140 ( 35% @ 135 amps ) here in Canada.
It is a big hit with a lot of Body shops in the area.
Our Sales rep for this unit demos it using .023 Aluminum wire feding from the machine through the Regular mig gun. He claims it is ideal for repairing Aluminum body panels and hoods.
cheers
