Weldmart rewound the Main armature for a Lincoln SA200 —the first step to making your machine last a lifetime!
- Larry Gruner
- May 23
- 2 min read
I have always had a love-hate relationship with Lincoln Electric. From a strictly engineering position, they were brilliant. From a manufacturing perspective, in my humble opinion, they could teach the Chinese how to build cheap, cheap, not economically cheap, cheap, cheap!
How these older SA machines last so long is a mystery, wrapped in an enigma!
Starting with code number 7276, SA200 began with the armature FJW-27.6E (Lincoln's winding specification)
If your Lincoln welding machine has this type of exciter (AC) our Weldmart rewound armature will fit your machine.
Lincoln Electric has obsoleted both the rotor and the armature frame as seen in this image.We can rewind yours or sell you a rewound item.



Evidence: A
The original Lincoln armature was made as cheaply as possible. In all honesty, I could not figure out how to make them cheaper. Paper insulation, a thin layer of varnish to insulate the individual copper ribbons. What happens to the paper when it becomes wet? The varnish degrades. There is a reason water is known as the universal solvent. It is what insulates and is the material that cushions the windings from the metal laminations-that's it! If you're in West Texas, Arizona, or Saudi Arabia, it should last as long as you keep it dry. The armature does not have wire (Round Conductor), Lincoln Armatures are wound with rectangular square conductor, we generally call it "ribbon". From the drawing mill, it comes with a very thin coat of varnish; that's it.
Down here on the Gulf Coast of Texas, it's wet and humid.
Mix salt, dew, and major magnet fields, and you get what we call "Eddie currents" and induced corrosion (electrolysis). The use MIG welding wire to hold the winding place, if it fails, and they do, if you're lucky, the armature can be saved.

Today, we dry out the paper and soak it in epoxy. It's expensive, but it helps. Another reason to buy your rewound armature from us is that all of our armatures are 300 A. This is one of the reasons we've never had one returned for warranty.

We start with new virgin copper ribbon windings, originally coated with varnish, and then wrap them with a layer of dry fiberglass cloth. The windings are held in place with fiberglass bands; they will not rust or fall off. As a final step, we coat the whole armature in a red epoxy varnish.


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