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Welder probems i have a lincoln mig 100 welder that still welds but it has seemed to have lost power dont get the penetration that it once had

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A mig welding unit of 100 amps is very low, you will require a small wire size, plus the contact tip, liner to suit, expect to get a maximum amperage of 70- 80 amps max, if the unit is Aluminium wound transformer then expect 6 months use, and the ampage will drop ,then its scrap, depending on the weather conditions that the unit is kept, will depend on the live of the unit.

Posted on Jan 23, 2009

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