Log Splitter

Grapegrower · Oct 21, 2018

I was going to make a homemade log splitter. I was going to use a 4 1/2x24” Hydraulic cylinder. Can I run that off of my back hoe hydraulic ports on the back of my Grand L 4760? I’ve also got rear remote attachment on the back as well. What ports would you run it from? The cylinder is rated for 3500psi. Not sure what my tractor rated for.

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seanbarr · Oct 21, 2018

Personally, I wouldn’t use the tractor. Stand alone log splitters push out more gpm and frees up the tractor for other uses, not to mention keeping the operating hours low.

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Ironman2 · Oct 21, 2018

I have done that, but used a PTO pump.
It is a homebuilt unit that had a engine failure and was given to me basically as scrap.
The pump is a 3.4 cu in pump and I run the pto in a higher gear and the engine just above a fast idle. We broke up all our winter firewood in a very short time. I like it as it can move around to wherever I have trees down and stored.

Fordtech86 · Oct 21, 2018

Agree with the stand alone splitter too. When I was looking for mine I looked at a 3 pt mounted one, read so many reviews about how slow they were. The 3 pt was about half the cost of the stand alone, but I also was only looking at Honda powered stand alone units, at the time I was borrowing a friends splitter with a Kohler engine and I spent more time putting all the nuts and bolts back in it from it shaking itself to death. The Honda is so much smoother running and quieter. I use the tractor to tow the splitter to the site then unhook and put the bucket right next to the splitter, throw the wood from the splitter to the bucket. When the loader full i run it to the wood pile and it gives the splitter a little bit to cool off in between loads.

Treckerzeug · Oct 22, 2018

Grapegrower said:
I was going to make a homemade log splitter. I was going to use a 4 1/2x24***8221; Hydraulic cylinder. Can I run that off of my back hoe hydraulic ports on the back of my Grand L 4760? I***8217;ve also got rear remote attachment on the back as well. What ports would you run it from? The cylinder is rated for 3500psi. Not sure what my tractor rated for

Hello,

Sure you can do it that way,

3500 psi should be=241.31651 Bar

Your tractor should be around 179-180 bar, so you d get less force out of the cylinder,

The force might be calculated with this formula
Pi x rad x rad x pressure in bar would give metric ton of splitting force

Only thing it would be good to have an extra double acting spool valve
On the splitter,

Over here you ll get a new one for 80 euros
From this it would be better to have the return line directly into the oil sump of the tractor, not passing through the spools to have less counter pressure as then you would heat up the oil less.

I did it that way for quite some time, also with a little more revs then idle on a french built vinyard fergie 25.

The hydr. Cylinder has a diameter of 90 mm and a stroke of 900 mm
It worked fast enough to get things done quickly

Splitting force is around 9 t which is mostly sufficient

Regards

Robert

coachgeo · Oct 22, 2018

long discussion on this topic already in here. Consensus then also was..... "get a stand alone". A search should find the thread.

techcrewkevin · Oct 22, 2018

Grapegrower said:
I was going to make a homemade log splitter. I was going to use a 4 1/2x24” Hydraulic cylinder. Can I run that off of my back hoe hydraulic ports on the back of my Grand L 4760? I’ve also got rear remote attachment on the back as well. What ports would you run it from? The cylinder is rated for 3500psi. Not sure what my tractor rated for.

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If you decide to build a stand alone I have a set of plans for one that uses a 4" x24" cylinder... I bought the plans back in 2010 and have had the PDF since then. I found it again and the website I bought the plans from doesn't exist anymore. PM me if you decide to build a stand alone.

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Donystoy · Oct 24, 2018

Here is a picture of a splitter I built a few years ago. I use the pto pump from my backhoe. Works great! Love the ability to easily travel to the work site. I guess if I ever sell it, it will have to be a package deal

Tim Horton · Oct 29, 2018

I've been around this kind of project several times before.
The thing that I can see is you have to work backwards at first then forward again. To explain..

The cylinder is rated for a specific max pressure. To make the cylinder cycle at a desired speed and rated pressure it will require a specific gallon per minute of oil flow. Then you move forward to what gallon per minute is available from your tractor system. If it matches, good, go for it.

Usually most compact tractors don't have the gpm for the splitter. An option is to use a oil reservoir and a pto driven pump. Again a pto pump to provide the pressure and gpm will require a specific pto horsepower. That is likely more available on a compact tractor than a useful gpm value.

My 5 cents of experience.

majorwager · Oct 29, 2018

Coach is correct, this subject is constantly repeated. My preference is the PTO pump, mine is 14 gpm @2100 psi. Doubt a stand alone unit can match.

Fortunate to have multiple tractors so it can remain mounted all through the fall. As for speed, good way to sever a finger. Summer too hot for woods work.

I operate just above an idle, output psi is constant but gpm is reduced. Tractor is the 50 hp gross IH.

It is vertical I-beam style so no lifting. Cylinder is 5 inch, rod is 2-1/2" .

Very rare that is won't split what is place in the blade path.

Few splitters have hydraulic cooling, so attention to ambient oil temp is important !! Automatic return is a nice feature which I do NOT have.

A pressure gauge and a Pressure Relief Valve are essential for a self designed unit. The directional control valve gpm rating should match that of the pump output.

Huskerfan · Nov 2, 2018

Look at the Northstar spltters from Northern Tool. They are often on sale. They have easy starting Honda engines. The 37 ton splits 24 inch oak rounds without stalling. Splits vertically if needed, to save your back. Well built. Easy to tow.

David Page · Nov 2, 2018

Hope you take time to vote next week.

tor · Nov 22, 2018

I was debating on getting a PTO driven splitter, but decided against it. Bought an Ariens 27 Ton splitter, and love it.

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Log Splitter

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