I'd really like the way some of the big engine driven welders (like Lincoln's SA-200) hold up for generations. Typically, they are water cooled, too, so they run quieter.
However, the welders with small CC engines (like Lincoln's Ranger line) support Multi-Processes (AC/DC, CC/CV) but are louder because they are air cooled.
Why don't any of the large engine welding machines support Multi-Processes?
How would a small engine last compared to a big engine? I can't imagine a welder showing up with a Lincoln Ranger 250 on the back of his truck on a big pipeline project!
Why don't the big welding manufacturers make something that fits this gap?
A Pipeliner that is out of work might want to accept an aluminum job, or the power might go out and he may want to use that big engine to generate whole house power.
A Novice (like me) might want a smaller, Multi-Processes welder that doesn't cause the cops to show up at my house (noise) every time I crank it up.