Wood splitter design

[chewy]

Hello all,

I'm working on building a log splitter and currently have it set up to be ran off of tractor hydraulics. I'm using a 5"x1.5"x24" cylinder with a two way valve. I want to buy a pto hydraulic pump for it and need to know how many gpm I need. I want to be able to split 6 ways if I need to.

Also, I have 2 4"x1.5"x24" cylinders and was wondering if putting those in parallel would give me more power an faster cycle times? What kind of gpm is needed for this setup?

Tia

Erin

 

[OH_Varmntr]

Pump gpm is for speed. Buy as big as you can afford, but also match for PTO hp. Do you know what the PTO hp is?

If you install 2 cylinders in parallel your splitting force and cycle times will double.

You can run numbers and figure out pretty closely your cycle times with a given pump gpm.

 

[chewy]

Pump gpm is for speed. Buy as big as you can afford, but also match for PTO hp. Do you know what the PTO hp is?

If you install 2 cylinders in parallel your splitting force and cycle times will double.

You can run numbers and figure out pretty closely your cycle times with a given pump gpm.

Well I can use a farmall b, super mta, h, but was wondering if the 1000 rpm pto on a 806 would be best? The tractors range from I think 30hp up to 100 hp.

Ty Erin

 

[OH_Varmntr]

I'm not very familiar with PTO driven pumps as they generally spin slower than log splitter pumps. Do some searching online for PTO pumps and you should find pumps specs like gpm at certain pump speeds, hp required, etc...

I would most certainly think 30-100hp would be enough.

If you figure out how much volume is required to extend a cylinder or cylinders you can figure out cycle times within a certain degree of accuracy.

 

[OH_Varmntr]

For example, northern tool has a PTO pump that's puts 40gpm out at 1000rpm/1000psi for $650. Max pressure is 2250 but doesn't show a pump curve to show pressures through the entire pump output curve so 2000psi might only happen at 25gpm.

But with 2 cylinders, you would make the same splitting force with 1000psi as you would with a single cylinder at 2000psi.

 

[rowerwet]

(broken link removed to http://www.split-fire.com/splitter_3p_2203.html)
two rams could make this kind of splitter faster?