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Old 12-19-2009, 06:40 PM
oldred oldred is offline
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Those duty cycle ratings are a lot like HP ratings on compressor motors and most are optimistic to say the least! There simply is no comparing a 110V welder to a 220V and there is a heck of a lot more to it than just 1 extra minute welding time out of 10, the highest setting on most 110 machines is not really high enough to do a proper job on frame welding and the duty cycle will be a PITA. You can certainly do small frame welds with a 110 machine but this will require preheating with a torch due to the low amp setting and that makes it impractical for large jobs.

A stick welder (a DC machine) will do an excellent job on frames and with 7018 rods strength will not be an issue, HOWEVER doing this with stick requires a very different level of skill and doing it improperly could be disaster!
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