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Importance of Adjustable Voltage on MIG welder

4K views 5 replies 6 participants last post by  SirSpeedy 
#1 ·
I searched (really did), but still have a question on selecting a MIG welder. How important is it to have an infinately adjustable heat setting? I'll mainly be doing body panels, but will also be doing a sub-frame using tube approximately 1/8 thick.

BTW, I found a Millermatic 135 (infinite adjustable heat) with cart, extras and no shipping for $540. Sounds good to me, what'ya think?

Thanks
 
#2 ·
I used a mig and arc welder and the only time i adjusted the voltage or amprage is going from welding 1/8-1/4 to 3/4- +. The mig did not handel the bigger stuff, did great on small stuff.

If you never used a mig before do some practice a bit to insure good penetration of weld ( voltage = heat )

I'll check with the weld shop at work to the settings for sheat metal if your not shur on that.
 
#3 ·
i have a mig with full adjustability and haven't used anything other. but i'll bet if you go with the preset models and you need something in-between two settings, you'll be kicking your *** that you didn't go for the other one. i'd go with the better model as you can tune in the welder to whatever you need.

JB
 
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