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I have a chance to buy a Champion 16. It had an Onan P218 engine, but the guy needed the motor for a more important project. He wants $100 bucks for the welder. It's a Mig/ Tig/ arc combo I'm told. My question is, could a guy power this unit with an electric motor and if so what size? Thanks in advance, AZ
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I believe you could use an electric of approximately 7.5 hp. -
I know torque curves are different for electric motors/gas engines, but I'm curious how you arrived at that number since it's less than half the design horsepower?Originally posted by gatkeper1 View Post
To the original poster, it's not really what I'd call a "MIG/TIG/arc combo," it's primarily an engine drive SMAW source. However... you could add a tig torch with a gas valve and do scratch start TIG on DC. And you could add a HF starter box and conceivably do some AC aluminum. And you could add a suitcase feeder and do wire-feed processes from the CV setting. But it's not really a "combo" machine in that as it ships it's ready to do only one thing, and that's stick welding.Trailblazer 302 * Millermatic 212 * Syncrowave 180SD * X-Treme 12VS Feeder * Spoolmate 3035
Thermal Dynamics Cutmaster 52 Plasma * Lincoln 175 MIG
Victor Superrange II * Victor Journeyman
Hobart HH 125EZ
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Electric to gas or gas to electric. Yes the torque curves are the difference, and so is the HP rating. Gas engines are rated at peak HP Electric motors at continuous HP. From what I have read you need a 2.5 - 3x factor to find the equivilent replacement. 7.5 hp electric x 2.5 = 18.75 hp gas. Now finding a 7.5hp 3600 rpm electric is going to be an expensive option. Probably $700.00 + plus making an adaptor bearing support end plate and an input shaft to drive the rotor would not come cheap. I would find another Onan first.Comment
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If the welder is in good condition it might be worth installing another gasoline engine, that way you would have true "portability".Comment
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I am all for used equipment but this screams,,,, more effort than its worth.Comment
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AND,,,,,, you have no way of knowing whether the welder itself actually works, until you've spent all the money and effort .....*** Disclaimer ***
As I have no wish to toy with anybody's life, I suggest you take this and all other posts with a certain amount of skepticism. Carefully evaluate, and if necessary, research on your own any suggestions or advice you might pick up here, especially those from my posts, as I obviously haven't the skill and experience exhibited by some of the more illustrious and more successful members of this forum. I'm not responsible for anything I say, as I drank toxic water when young.Comment
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ALZ,
Where abouts are you located? I'll bet I could find a hundred dollers worth of good parts on it. If he's close to me, maybe I'll take it off his hands.
---Mike---BUY AMERICAN... THE JOB YOU SAVE MAY BE YOUR OWN!!!!!
Hobart Champion 16
Miller external secondary contactor
stick foot pedal
remote voltage control(homemade)
Hobart Portafeed 17(w AG-2000 control box)
Bernard Q350 mig gun
Hobart AG-2000 pull gun
Lincoln Hi-Freq k799(yes, I know it's red)
Weldcraft CS300 tig torch
Miller RFC-23A foot pedal
Thermal Dynamics Cutmaster 50
Victor 450/300 series torches
oodles of connecting cords
I can fix it, just pay me to replace it first
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