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Hydraulic Motors

tiger9297

tiger9297

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I'm working on a few projects and I need some hydraulic motors. I know the zero turn mowers use hydraulic motors but I'm not really familiar with other applications where they are used. These motors are kind of hard to find from a salvage standpoint. I was wondering if anyone knew of a specific industry or other pieces of equipment that use hydraulic motors that might help me in my search. Just trying to find some other places I might be able to find some. These things are fairly pricey new so I was looking to buy used if possible. Thanks for the help.
 
horticulture/nursery equipment, agricultural equipment, any industrial automation equipment, etc. Of course those would be fairly large motors, but I'm not sure what size motor you're looking for.
 
I've got a couple...found them at work in an old crate stuffed in the corner so I took them b/c they were going to just toss them. I'd say check with some local machine shops (where I work) b/c we do all the hydraulic rams off of the garbage trucks around town so we get odds and ends in from time to time relating to various hydraulic applications...

I'll post up pics of what I have tomorrow...if worse comes to worse I'd be willing to part with a couple of mine...
 
I've worked with hydraulics virtually every day for 5 years now, I'm far from a specialist still, But I know my way around a hydraulc schematic. Application is very important. you can't just pick up a used motor and slam it into your circuit. Well you could I suppose but I can guarrontee that you will not be happy with the results.

bare bones simplest is a good old gear motor. fixed displacement. add fluid power and you're off to the races.

Then opposite end of the spectrum is your Variable swashplate, bi-directional, load sensed, pressure compensated hydrostactic drive, piston motor.

whats it going to do? and sized correctly....... Theres so many question that need to be answered. my shop is full of pumps and motors of all kinds. none for sale to the public though, its for all our Drilling rigs and Wellhead service equipment. Construction equipment.......theres so many places to rob motors from.

You use cruddy dirty unknown motors failure rates go up......... and contaminate the entire circiut = more headaches = more work.

IMO Used + Hydraulics is only OK if you're a farmer jimmyrigging some crap in the field.
 
Thanks for all of the input. I'm still very much in the learning phase of hydraulics. I'm actually looking for a number of different motors and pumps for a number of projects I'd like to do. One project will need 32 Cubic Inch WHEEL motors. I've read that wheel motors have stronger shafts than standard hydraulic motors???? Don't know if that's the case or not. I need 4 of them.

I live in MS so no shortage of agricultural equipment down here. However, while practically every tractor, cotton picker, etc. out there has numerous hydraulic pumps it seems the motors are not as plentiful. That's why I was hoping to find another source. The garbage truck idea is good as well as many other commercial type trucks. Again though, aren't those trucks using pumps not motors?
 
Wheel motors as in the ones on the new trash compactors at the landfills? That was the first time I had ever heard or seen something like that in person...my boss took me out with him on a line boaring job to bore, sleeve and press new bushings into the plate that supports the rear axle on one of the trash compacting trucks and it runs a hydraulic motor at each wheel...the guy @ the landfill said they loooove this setup b/c it doesn't have any d-shafts that stuff can get tangled up in...
 
..........thats what hydrostatic drive is. Bobcat/skidsteers use them, Excavators use them. various other machines. I personally use hydrostatic drive on a couple circuits. One fan drive for the 3512 Cat deck engine one for a water pump drive. 32 Cu/in is fairly big. you'll need to rob a couple large machines of their track drive motors.
 
Ah and to clairfy a little, when i said used I meant I wouldn't use straight used, but Reman'd sure.


basically every curcuit has to have at least 1 pump supplying a device, some type of a motor or cylinder. with a directional control valve. generally you don't have a motor and cylinder in the same circuit, even multiples of one or the other but not both.


What kind of pump are you useing?
 
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