hydraulic res size?

[6sunset6]

I have a log splitter with an 11 gpm pump. The tank is about 1.5 gal. maybe 2 at most. It gets warm to the hand but you can leave your hand on it.
Of course the system pumps to tank more than it pumps to load. I think the tank size is really dependant on the work component. Rules of thumb are good for average work and always kind of a safe position. But if the application is substantially different from average you can save a lot of money or cause a lot of damage.
Did I help? It's raining out

 

[Renze]

Dont forget that you need to be able to have the amount of oil in the tank to expand all your cylinders. Tractor dumptrailers around here, often have a PTO pump setup because the amount of oil in the tractor transmission isnt enough to pump that large 4 stage telescopic cylinder up. With a PTO pump setup, you can run a tank as large as you want.

 

[Danno1]

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Heat (cooling capacity) isn't the only reason for a large tank. The oil needs an idle time in the tank for air bubbles to separate out. Particulates should be taken care of by the filter.

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[J_J]

I have mentioned all this before, but there are those that like a 1:1 ratio, which allows a smaller tank, and the tank and oil is less expensive. . For intermittent operation, you could get away with that. such as log splitters, and even tractors. If you have a gear tractor, you don't need much hydraulics.

My Power-Trac is all hydraulic, and with a 45 HP engine, It will allow me to pump a total of 22 GPM with in all three systems. My reservoir is 20 gal. and it gets very hot. Again, saving space. To replace the oil in my tank would cost about $280.@ #3.50 qt. Now, along with that , I have a hydraulic radiator cooler with auto fan. There are ways around things.

 

[Iplayfarmer]

im using a 12 gpm prince pto pump to run a home made (kind of) backhoe . i have an 11 gallon reservoir. is that cutting it too close? does anyone know where to get inexpensive tanks. any thoughts welcome

Please elaborate on your "kind of" Homemade backhoe.