Hello. Vintage DAYTON portable welding machine 3Z751-A

Welder1965 · Oct 28, 2015

I live in Phoenix AZ. Have been welding for over 35 years now, and have used many machines in my time, and have stuck to my Millermatic 35 200, and my Bobcat 225G Plus. Nice machines. I collect, and restore welders for fun, but I have purchased one, that is nowhere on the web to be found. It is a rare one for sure. I have restored it, and it runs like a top. It is a 1976 Dayton 3Z 751-A, with a Briggs two cylinder opposed 16 hp, has 7000 watts AC power, and has an output of 200 DC amps. Also, this is an alternator, not a generator. This unit was even built with a remote plug for fine tuning the amperage. I had to go to Grainger, and have them go back into there archives to find all the info that came with the unit when it was built.
This machine is pretty amazing for it's time. I am going to supply a pic of the unit, and if anyone has found another one, or knows more about the history of it, I would really like to hear from them. Thank you for reading!
Greg
Welder1965

M J Mauer · Oct 29, 2015

Welcome to the forum Greg.

Sparkie · Oct 29, 2015

Welcome aboard Greg. You truly have an odd duck there, but that's what makes it interesting

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Steve
Lincoln IdealArc 250
Lincoln SA200 1966 Redface

Welder1965 · Oct 30, 2015

Thank you for the welcome Sparkie. It is an odd one for sure. It's the oldest portable I've ever had. I was 11 years old when it was built. I sure wish I could come in contact with someone that knows more about them. 1976 were not the easiest times either. I wonder if there were very many made.
Anyway, thanks for responding!

Sparkie · Oct 30, 2015

Was Dayton a Grainger product ? Usually in a private branded machine you can see the influence of the parent company; Miller,Hobart, Lincoln, etc. Your machine looks unique to me, maybe someone else can recognize it and enlighten both of us

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Steve
Lincoln IdealArc 250
Lincoln SA200 1966 Redface

Welder1965 · Nov 1, 2015

Hey Sparkie, as far as I know, the Dayton welders I've seen from that Era, were there own entity, but Grainger was one of the distributors. I think it was actually a close comparison to some of the Miller designs. Really not sure at this point. The body, and internals remind me of an old Miller.
Somebody else needs to jump in here with some more info.
I'm really curious, if this may be one of a few operating machines of this Era.
Thanks Sparkie!

Greg
Miller SM 1
MM 35/200
Bobcat 225 G Plus

Hello. Vintage DAYTON portable welding machine 3Z751-A

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