why 2 motors

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Forum topic by Davevand posted 06-17-2019 08:47 PM 240 views 0 times favorited 4 replies Add to Favorites Watch
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128 posts in 1351 days

06-17-2019 08:47 PM

Not my ad. Old industrial equipment for free.

- Rink

In the craigslist ad this free machine was listed.
Why is there 2 motors? Looks like one is turning the other?

4 replies so far

View Craftsman on the lake's profile

Craftsman on the lake

3022 posts in 3952 days

#1 posted 06-17-2019 08:52 PM

I don’t know.. curious. Only thing i can think of is that the small one, if correctly pullied, might take the load off of the larger one a bit thus giving you more power????

Strange thing to do but someones big idea that might work.

-- The smell of wood, coffee in the cup, the wife let's me do my thing, the lake is peaceful.

View DrDirt's profile


4592 posts in 4257 days

#2 posted 06-17-2019 08:55 PM

Wonder if the larger motor had too large a current draw on starting, so the small motor is used to get the large one going? Don’t know.

-- “The two most important days in your life are the day you are born and the day you find out why.” Mark Twain

View Andybb's profile


2117 posts in 1118 days

#3 posted 06-17-2019 08:56 PM

My guess is the small motor gets the larger 3 phase induction motor going?

-- Andy - Seattle USA

View Fresch's profile


452 posts in 2435 days

#4 posted 06-17-2019 09:55 PM

They wanted 10-1/2hp motor so added the small1/2hp to get it.
DrDirt, Andybb, have the idea.

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