log splitter attachment. Yes or no

   / log splitter attachment. Yes or no #31  
Well, ain't technology great!

jb
 
   / log splitter attachment. Yes or no #32  
pat32rf said:
My BIL hates to split wood but has a 65HP Massey and a massive vertical
3ph splitter he built with a 4" ram. I borrowed it (he hadn't used it in years), leaned it up against my woodshed (tied the top) and hooked it to the power beyond of my JD 4300. Worked good but slow. I finally bought a 2.5" cylinder for it and things speeded up considerably.
I then spotted another home-made splitter sitting at a buddies.(His wife later told me that she's been cutting the grass around it for 7yrs as he has a self contained that he uses instead) This splitter has a longer 2.5" cylinder with a narrow fixed wedge and moveable push pad. The rest of the splitter is built around a ten foot long 5" square tube (1/2" wall) and weighs twice what it needs to. This one I left laying on blocks (horizontal) and find that it just keeps pushing the split pieces out of the way as I work. They get piled by my helpers.
In my case I haul or skid the logs to the woodshed where they are cut up and pushed into a pile beside the splitter. When I decide to split for a while, I just plug into the splitter, rev up to 1200rpm and turn up the FM....I seldom split anything over 14" diameter so lifting the blocks onto the splitter isn't a problem. I split about 5 bush cords this fall and still have another pile of dried hardwood logs sitting there as an emergency supply if its a cold winter.
A stand alone/self contained would only appeal to me if it were a tiltable unit with an electric start, on big wheels and really inexpensive..... ;-)
Click to expand...
Are you talking rod sizes or cyl sizes. A 2.5" cyl is tiny and wont be able to split anything tough.
larry
 
   / log splitter attachment. Yes or no #33  
I've been using a vertical 3pth splitter for the last couple of years. It works great, plenty fast enough for me, and to repeat numerous before me, one less engine to service etc.
It also stores neatly in the corner of the shed.
 
   / log splitter attachment. Yes or no #34  
Does anyone know if the Barnes pumps like Northern uses on their splitters,
typically these have 11 gpm on a 5.5 hp and 16 gpm on a 9hp motor. Is that the hi pressure volume? It must be can't see a 9 hp putting out 16 gpm at 2500 or 3000 psi. That would take @ 25 hp.
Any idea what the low volume is?

I can't see how these splitters can be any faster then a newer tractor with a 15 or so gpm pump.
I have a Northern 4" horizontal/vertical tractor splitter converted to fit my NH skid, it has the high flow option that gives me 24 gpm or 15 gpm.
I run it a 2000 rpm (3000 is max) and find it to be plenty quick, sub 10 second cycle times. Also I rarely fully extend the ram to split the ash I burn
Works great I split wood until the splitter is buried then move it closer to my 8' pile and cut and split another round. or set my snow bucket right beside the splitter and split and pile right into the bucket
Ken
 
   / log splitter attachment. Yes or no #35  
That hydraulic pump puts out 11 gpm at 650 psi, and 2.9 gpm at 2500 psi. It will operate on 5 HP.



Cylinder Speed

Bore Size 4 inches
Rod Diameter 2 inches
Pump Flow 11 GPM

Extension Speed 2.4 inches per second
Retraction Speed 4.5 inches per second


Cylinder Speed

Bore Size 4 inches
Rod Diameter 2 inches
Pump Flow 2.9 GPM

Extension Speed .9 inches per second
Retraction Speed 1.2 inches per second


Cylinder Speed

Bore Size 4 inches
Rod Diameter 2 inches
Pump Flow 24 GPM

Extension Speed 7.4 inches per second
Retraction Speed 9.8 inches per second
 
   / log splitter attachment. Yes or no #36  
Ok thats about what I thought. I'll have to stick the pressure guage in the skidsteers 3rd valve and see how high the pressure gets. But I sure these 2 stage pumps must spend some time in low volume. Where as the larger pumps on tractors and skids would just keep on coming at max flow. On a 20 ton splitter these pumps would switch to low volume at @ 4.3 tons assuming a max of 3000 psi
Ken
 
   / log splitter attachment. Yes or no #37  
Hi,

How big a splitter does one need to push through a 4 way blade?? Are they worth it, or more a pain than a single blade??

Thanks,

-Jeremy.
 
   / log splitter attachment. Yes or no #38  
It is going to depend on the size of your cylinder, pump size, HP, and type of wood. They work good if you have the HP, and does save some time.
 
   / log splitter attachment. Yes or no #39  
J_J said:
Cylinder Speed

Bore Size 4 inches
Rod Diameter 2 inches
Pump Flow 11 GPM

Extension Speed 2.4 inches per second
Retraction Speed 4.5 inches per second


Cylinder Speed

Bore Size 4 inches
Rod Diameter 2 inches
Pump Flow 2.9 GPM

Extension Speed .9 inches per second
Retraction Speed 1.2 inches per second


Cylinder Speed

Bore Size 4 inches
Rod Diameter 2 inches
Pump Flow 24 GPM

Extension Speed 7.4 inches per second
Retraction Speed 9.8 inches per second
Click to expand...
If the 11gpm figures are right the 24gpm figures are not -- and vice versa. Could you please check this?:)
larry
 
   / log splitter attachment. Yes or no #40  
jgrreed said:
Hi,

How big a splitter does one need to push through a 4 way blade?? Are they worth it, or more a pain than a single blade??

Thanks,

-Jeremy.
Click to expand...
You will need a 5" cyl at minimum. For decent speed @ this size you will need a 16gpm 2 stage pump minimum. That will take about 8hp to drive. If you split logs that are clustered around an ideal dia range Im sure its worth it. If you split a wide range of sizes and shapes im not so sure.
larry
 
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