hydraulic pto pump

want one for wood splitter project...i was told high end splitters were 25 gpm an up and 3500 psi...all the pumps i see are 2000 psi..also do you have to have a 25 gallon reservour......where do you find 3500psi pumps or is 2000 ok............i was lookin at prince pumps...any help appreciated ...........dewy

Surplus center. Jim
one pump.

thanks jim.......is that a two stage pump...thats what i was lookin at.....dewy

There is a lot of research in designing a hydraulic system. Hydraulic components are expensive. Working everything out in advance is a must!

The 2 most important considerations are the desired force, and the cylinder speed. Once that is determined, selection of components begins.

There are many considerations.

Pump volume at given RPM, combined with cylinder piston area, will determine the speed.

Pump pressure combined with cylinder piston area, will determine force.

So, a 3500 pound pump with a small bore cylinder will apply the desired force faster than a 2000 pound pump with a large bore cylinder, provided they are the same volume and driven at the same power. There are hydraulic calculators available online to sort all this out.

It gets complicated, all the factors involved, physical size, economics, convenience, safety...

As for the capacity of the tank, that is based on the difference in volume of the cylinder in the extended and retracted position, plus the dwell time the oil needs in the tank for heat dissipation, and some common sense depth of the pump suction to prevent air getting into the pump.

If I were going to attempt this, I would do a lot of online research, owner reviews, Youtube videos, product specs, etc.

Once I found a design I liked, I would go see one in person. Take a camera and a note pad, write down the make and model of each component. Even if you don't follow that design exactly, you will get a ball park idea what they did, let someone else work out the problems.

You may also find there will be little savings in buying the components. Unless you have a source, or some extra parts laying around, the manufacturers can get bulk pricing and pass the savings along.

No that is just a normal PTO pump, They have thousands of pumps at that site. Listen to what Steve says above. Jim

thanks yall.....more home work....dewy

If it were me....I would go with a 'Farmhand" style pto loader pump. Then I would use a 10 gallon reservoir.That's the size of the reservoir on my f-11 farmhand loader.I would use a spool valve,and go with a 4"x24" cylinder.Make sure there is a relief valve on it somewhere. Either in the spool valve,or a separate unit.Probably not the way an 'engineer' would design it,but I'll bet it would work.Probably cheaper to just buy a ready made splitter.......

A two stage pump let's you get more flow with less hp. Even a small tractor pto has plenty of hp for a woodsplitter usually with a standard pump

Your statement is worth repeating. The only advantage of a two-stage pump is that it allows the splitter to give both speed and force with a small, low-power engine. If you have sufficient power, as any tractor PTO will deliver, a two-stage pump is completely unnecessary.

the hydro pumps on a nholland bale stacker like my 1030 is totally self contained , and would probably do all you ever want to do ..a sc CASE with only PTO runs it Just fine on flat land ..

(quoted from post at 19:47:47 12/31/17) Surplus center. Jim
one pump.

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Dewy, if you are interested on a Prince PTO pump like that, I have a new/unused one I'd sell for 1/3 price (plus shipping). NO box, been on the shelf a few years, but NEW.

Let me know if interested. [email protected]

go with a 2 stage pump unless you have ample time to kill, I have a single stage and they are a lot slower then the 2 stage.

Go to HF and buy a 6.5hp Preditor engine and to Northern tool and buy an adaptor/mtg/drive coupling, two stage splitter pump and a splitter control valve if you are building a regular splitter with max of 4" dia. cylinder.
I can't see for the life of me why someone would want to run a farm tractor all day to split wood, when those Preditor engines just sip fuel, unless you are building a behemoth splitter with lets say a 6" dia, cylinder, or twin cylinders, and need HP to operate a high capacity pump like you described.
Loren

What make and model of tractor ?

If a fellow followed your idea and put together a pump engine and tank unit with a valve and quick couplers a splitter meant to run off a tractor would work perfectly. Then the power unit could be disconnected from the splitter to run an auger or bale elevator with a hydraulic motor in the summer.

I have couplers plumbed into my splitter and the hyd flow is diverted to my wood elevator when the splitting cylinder bottoms out on return stroke. Oil goes thru a hyd. motor on the elevator, until I release the lever.
Many of the people who have ATVs and UTVs that pull small log trailers with a grapple lift have hyd power units that set on the back of their wheelers, that couple to the trailer's hyd system.
Loren

(quoted from post at 06:23:07 01/01/18) Go to HF and buy a 6.5hp Preditor engine and to Northern tool and buy an adaptor/mtg/drive coupling, two stage splitter pump and a splitter control valve if you are building a regular splitter with max of 4" dia. cylinder.
I can't see for the life of me why someone would want to run a farm tractor all day to split wood, when those Preditor engines just sip fuel, unless you are building a behemoth splitter with lets say a 6" dia, cylinder, or twin cylinders, and need HP to operate a high capacity pump like you described.
Loren

Click to expand...

I agree with that.