2nd function on a log splitter

[J_J]

Back pressure.

Max tank port pressure is only 150 psi.

Most common log splitter valves were designed for a specific task. and the output outlet was not designed to handle high pressure. It was designed to pass fluid through the valve in the neutral position, and expend the fluid from the cyl, none of that high pressure.

If you hooked the log splitter valve in a series circuit with a hyd motor valve valve, and if the hyd motor stalled, the high pressure would be reflected back to the spool seals and outlet port, and perhaps blow and or crack the housing. If the conveyor hyd motor is only doing light duty, the high pressure may never happen.

The only log splitter valve I have seen with PB is the dual lever auto valve, made by Prince.

Look at Specifications.

http://www.princehyd.com/Portals/0/products/valves/catalog/ValvesLsRd25.pdf

 

[AKKAMAAN]

Akkamaan,

Thanks for your replys. I'm not sure I understand why the seals would blow on the splitter valve. Why wouldn't they blow when the second stage kicks in during splitting? I am not challenging your assertion- I just don't understand.
I will put a gauge on the output side of the splitter valve to see what pressures develope. If necessary, I will change the splitter valve. Can you name a brand and model of the valve you describe?

Do you see any problem with teeing the excess flow line and motor return line together?

Thanks in advance

The return gallery in the splitter valve get pressurized with your plumbing, pressure from down stream motor valve....the seals are there to prevent the low return pressure to leak out externally...not designed to hold more than 300-500psi or so...

You can get some simultaneous operation with the 2 spool valve J_J mentioned...then no PB required...
I also think I have seen 1-spool valves that are PB capable....I will look around to see if I can find it....recall it was little spendy though...

 

[jezorek]

The return gallery in the splitter valve get pressurized with your plumbing, pressure from down stream motor valve....the seals are there to prevent the low return pressure to leak out externally...not designed to hold more than 300-500psi or so...

You can get some simultaneous operation with the 2 spool valve J_J mentioned...then no PB required...
I also think I have seen 1-spool valves that are PB capable....I will look around to see if I can find it....recall it was little spendy though...

JJ and Akkamaan

Thanks for the explaination. Now I get it! I'll look for a more suitable splitter valve. If you have a specific recommendation let me know. In the meantime I'll get a gauge in the down stream side and see if what kind of pressure I see when the converoy is under load. May take a day or two.

 

[jcims]

would like to power a conveyor from my log splitter. Can I tie into the log splitter circuit to power a hydraulic motor? The splitter valve is an open circuit, spring return. Can I plumb the motor using the open circuit return line? Will this method still be protected by the pressure relief valve?

Would you mind throwing in a few details on your conveyor setup? This is something i've been wanting to do for a while.

 

[jezorek]

jcims- The conveyor I want to use was originally a piece of farm equipment.It is bent up from thin gauge aluminum and uses detachable chain with rubber paddles attached to the links every foot or so. Total length is 16 ft. What other details would you like?

 

[jcims]

jcims- The conveyor I want to use was originally a piece of farm equipment.It is bent up from thin gauge aluminum and uses detachable chain with rubber paddles attached to the links every foot or so. Total length is 16 ft. What other details would you like?

Cool..thanks for the info! Is it a grain conveyor style like this?

Did you have to swap in a hyd motor or was it already equipped that way?

I'm also curious about the structural support...seems that firewood is probably lighter than would be needed for lifting bales if it's a hay elevator, but possibly heavier (and harder) than grain.

 

[DAY]

My haybale elevator is powered by a 110 volt, 1/2 hp motor, and can lift 2-3 50 lb bales at a time 20 feet without effort. Old motors a dime a dozen; since you already have the conveyor, why not go electric? (of course if you are splitting out in the woods, that's a different story!)

 

[AKKAMAAN]

My haybale elevator is powered by a 110 volt, 1/2 hp motor, and can lift 2-3 50 lb bales at a time 20 feet without effort. Old motors a dime a dozen; since you already have the conveyor, why not go electric? (of course if you are splitting out in the woods, that's a different story!)

great idea...:thumbsup:

 

[jezorek]

Jcims- My conveyoy is almost identical to your picture- just not in as good shape. I guess it was originally a grain elevator. It had no power so I am adapting a hydraulic motor.