If you have a Lincon Sa-200/250 DC "stick" constant current machine, You can turn it into an aluminum mig welder!
Here is how you turn that old stick machine into a real money maker!
A myth in the welding industry is that you cannot weld wire (steel or aluminum) with a DC constant current (stick welder) power supply. The industry has been welding both steel and aluminum wire with CC power supplies since World War II.
What you need is a variable voltage wire feeder. You set the arc current on the power supply and the arc voltage (which is equal to the arc length) with the wire feeder speed control. If the arc is lengthened, the wire feeder speeds up the wire to maintain the required arc length.
For example, you need to quote an aluminum job without aluminum mig equipment. Do you go into debt or spend your precious funds to buy a new machine that you may need just for this project? Have you priced new machines and spool guns? Almost all fab shops have power supplies tucked away in a corner, or your buddy may have one that he will loan you. All you need is the gun, and you're in business. If your local welding supply is not comfortable with welding equipment or the welding process, call us!​​
YES
NO
NO
YES
_edited.jpg)
_edited.jpg)