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Flat Twin Welding Generator Family Tree


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  #1  
Old 05-11-2019, 03:09:58 PM
rprohask rprohask is offline
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Default Flat Twin Welding Generator Family Tree

There were once quite a few flat-twin-engine welding generators, not
to mention electric light plants, that are outwardly very similar. Does
anybody know to what extent they share a common ancestor, and what
that ancestor might be?

The most obvious examples are Miller Legend and Lincoln Ranger, but
a few other brands surface from time to time; Hobart, Airco and probably
others. Onan and Kohler both made lighting plants in the same pattern.

Any insights appreciated, thanks for reading!

bob prohaska
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Old 05-11-2019, 06:57:43 PM
slip knot slip knot is offline
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Default Re: flat twin welding generator family tree

My Miller AEAD and Airco Wasp are basically the same set but @ 20yrs between them. The Wasp is rope start and mag fired with knife switche to change from power to weld and constant speed. The Miller is battery start, auto idle, toggle switch selectable power. Both good little machines.
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Old 05-13-2019, 01:00:39 PM
m_thompson m_thompson is offline
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Default Re: flat twin welding generator family tree

I have a P&H DC welder / AC generator powered by an Onan CCK twin. I have seen the same welder sold under different names with just small differences in the design.
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Old 05-13-2019, 03:44:59 PM
rprohask rprohask is offline
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Default Re: flat twin welding generator family tree

Any hint who made the welders? Clear enough that Onan built
the engines, but what about the generator heads? Frames? Controls?

Thanks for replying!

bob prohaska
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Old 05-24-2019, 11:31:02 AM
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Default Re: Flat Twin Welding Generator Family Tree

Onan was the most popular flat twin used by Miller, Lincoln and Hobart. Many of the rebranded Onan powered welders were made by Miller. Onan also made welder/generators under their own name too.

Kohler flat twins were found on Hobart welders for awhile. B&S flat twins also used by Lincoln.

A quick look in the archives I came up with some Onan production orders/build sheets for Miller from 1956, Hobart from 1957 and the oldest Lincoln so far from 1966.
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