Plumb 2 hydraulic motors together?

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millstreaminn
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Plumb 2 hydraulic motors together?

Postby millstreaminn » Thu Jul 05, 2018 7:55 am

My brother has an auger bucket that he uses to make silt sock for erosion control. He recently added another hydraulic motor to run an agitator to the bucket and he needs to plumb it in. His Bobcat only has one set of hydraulic lines to the front. Can he plumb the exhaust oil from the first motor into the pressure side of the second motor and then back to the Bobcat? These are small, low flow motors that turn at 20 rpm and both need to run at the same time. I told him i think he could, just wondering if I am wrong?
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Nesikep
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Re: Plumb 2 hydraulic motors together?

Postby Nesikep » Thu Jul 05, 2018 11:05 am

Yup, a lot of conveyors work in series that way
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Re: Plumb 2 hydraulic motors together?

Postby millstreaminn » Fri Jul 06, 2018 6:53 am

Nesikep wrote:Yup, a lot of conveyors work in series that way


Thank you! :tiphat:
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Re: Plumb 2 hydraulic motors together?

Postby True Grit Farms » Fri Jul 06, 2018 6:57 am

The only problem is running both at the same doesn't hardly work.
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Re: Plumb 2 hydraulic motors together?

Postby greybeard » Fri Jul 06, 2018 8:40 am

Depends how much pressure the second motor downline needs.
A better option might be to tee or 'Y' off just before the 1st motor to feed the 2nd motor, if the flow capacity of the bobcat can handle both..you would be running the 2 motors in parallel this way.
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millstreaminn
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Re: Plumb 2 hydraulic motors together?

Postby millstreaminn » Fri Jul 06, 2018 9:36 am

greybeard wrote:Depends how much pressure the second motor downline needs.
A better option might be to tee or 'Y' off just before the 1st motor to feed the 2nd motor, if the flow capacity of the bobcat can handle both..you would be running the 2 motors in parallel this way.


He tried that but needed a flow control valve because the oil would go through the motor with the least resistance.
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Re: Plumb 2 hydraulic motors together?

Postby ohiosteve » Fri Jul 06, 2018 10:53 am

I'd call Bailey hydraulic and talk to a tech, I bet they'll hook you up with a proportioning valve for less than you think.
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Re: Plumb 2 hydraulic motors together?

Postby Nesikep » Fri Jul 06, 2018 10:53 am

You can get dividers that split it 50/50.. If you have high loads on both motors, then that's the way to go.. If you're looking for speed out of both, then in series is best.. it's cheap too!
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Re: Plumb 2 hydraulic motors together?

Postby greybeard » Fri Jul 06, 2018 11:05 am

millstreamin wrote:He tried that but needed a flow control valve because the oil would go through the motor with the least resistance.


ohiosteve wrote:I'd call Bailey hydraulic and talk to a tech, I bet they'll hook you up with a proportioning valve for less than you think.


If load on the 2 motors is different, then yes, a proportioning valve of some kind is sure in order.
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