3 point log splitter

gary66 · May 17, 2016

I have a loader on my tractor that can maybe lift 2 tons, good for a loader, but how does that 2 ton limit operate a log splitter that is
rated at over 20 ton? Can anyone explain this?

maxwell99 · May 17, 2016

What tractor do you have and what is it pump psi and volume capacity?

I have had a trailer type log splitter for 20+ years with 8 hp engine, I understand the way it works is with a two stage pump,
With no resistance the oil is pumped at high volume low pressure to get the ram out to the load fast, but when the ram encounters the log and the pressure builds up the pump switches to low volume high pressure, 26 ton rating

This is what allows a 8hp engine to split wood,

However on a tractor your hyd system must have a pump with a pressure rating in the 26 ton + area for it to split wood satisfactorily, most will but your ram speed may be slow,

Larger tractors have high volume pumps that work fine for wood splitters, as the ram moves at a faster speed,

Paul Janke · May 17, 2016

The available force is a function of the pressure (pounds per square inch) that the pump can put out. A bigger diameter cylinder has more square inches, therefore more force. Your loader will lift 4000 pounds. The cylinders are moving one half or one third of the distance the load is lifted. Therefore, the force applied by the cylinders is 8000 or 12000 pounds. The loader will go up much faster than the splitter will extend, but with less force.

gtractorfan · May 17, 2016

Simple, all about leverage & cylinder size.

mechanicfred · May 17, 2016

Pressure times area equals force. Example, 4 inch cylinder = Radius squared times pie,2x2x3.14 = 12.56
12.56 x pump pressure,say 1000 psi = 12560 force or about 6 tons. To bad I didn't pay attention in school.
Had to learn it the hard way!!

gary66 · May 17, 2016

thanks for the reply's I figured there was something to it. It is a large tractor, Oliver 1850. The rams on the loader (oliver 1610) are i.5" @ around 38" long. The machine performs well. Just hooked up a woods ditch bank mower up to it, things is big and heavy, no issues at all, 3 point powers it right up. The system operates the remotes, pto, steering, and clutch. Don't know it's capacity but it must be stout to handle all that.

I go back and fourth on getting one that is on it's own and one for the tractor. Just didn't want to buy a used one and find out the tractor hasn't the pressure needed.

Kind of thought they must have their own pump that is fed by the tractor.

hd6gtom · May 18, 2016

Gary I had a 3 point made to use on my 1800C. It split wood ok but it was SLOOOOW. The ones with motors you rent are 2 or 3 times faster. Oliver used so much oil I traded it off for a 200 AC. I could not find anyone who wanted to overhaul the 1800. I still have the 3 point and use it behind my D17, have not tried it behind the 200. If I were to do it over again I would buy a self contained unit. Boss bought the biggest 1 Harbor freight had last year. He split 4 or 5 pickup loads of red elm. Said it worked very good.

gary66 · May 18, 2016

I've seen some 3 points for around $350, I didn't want to throw $350 away if it wouldn't work, seems it will and with the info here have a better idea of what to look for. Normally I don't use a splitter, but there are tough ones. A 3 point maybe all I need, but the stand alone's are much better because I wouldn't need the tractor.

Asked because I wanted some schooling, got it. I thought about putting a wedge on the bucket and using it. Because of the schooling here I understand it better.

notjustair · May 18, 2016

I use mine on the 4020 and that pump is more worn out than you can imagine. If you have the clutch in for more than two seconds the steering dumps and you have no pressure. Even it will split anything.

3 point log splitter

gary66

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maxwell99

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Paul Janke

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gtractorfan

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mechanicfred

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gary66

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hd6gtom

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gary66

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notjustair

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