LOG SPLITER BUILD

[LD1]

Yes I did see your build I think that's where i came up with the idea of inserting the wedge into the I beam I don't think It would hold just welded to the top

Just curious why you didn't insert the wedge farther? Is that all the material you had? I understand working with scraps.

Not only that, but the what you used the donor motor looks familiar

Those 3/8 ports are probably gonna cost you some speed, especially with 28gpm (and 35 gpm trying to exit when retracting)

 

[perkins78]

Just curious why you didn't insert the wedge farther? Is that all the material you had? I understand working with scraps.

Not only that, but the what you used the donor motor looks familiar

Those 3/8 ports are probably gonna cost you some speed, especially with 28 gpm (and 35 gpm trying to exit when retracting)

Yes I'm just working with what I had I want the wedge to be tall as possible we shall see if that works out

Yes its a good thing them motors out last the rest of them crapmans mowers

I'm thinking about taking the cylinder apart drill it out and weld on collars

 

[perkins78]

Still trying to pick a control valve to match the 28 gpm pump Im leaning toward Prince Log Splitter Detent Valve, 3/4in. Port Size, Model# LS-3000-2 Its 25 gpm it has 3/4 working ports I prob not run the 21 hp briggs at full throttle anyway.

I can only find two 30 gal gpm auto detent valvehttp://www.splitez.com/log_splitter_parts.html RD513CE5A4B1 30 G.PM 3000 P.S.I (update) This guy is sellling these on ebay better discription there Prince RD513CE5A4B1 Hydraulic Control Valve 30 GPM D Tent Log Splitter Parts | eBay Has power beyond port that maybe a must if I want to add lift or hyd wedge in the future plus it has the gpm rating

Prince 4-Way Detent Valve — 30 GPM | Detent Valves| Northern Tool + Equipment This one from northern tool is closed center you have to get parts to change it over to open center and it only has 1/2 working ports I dont understand that at all.:confused2:

 

[perkins78]

What do you all think of this valve claims its a "True 30 gpm valve" because it has #12 sae o ring ports if i understand correctly


Hydraulic Catalog | Cylinder Services Inc

 

[triptester]

#12 is the same as 3/4". Example #12 is 12/16"or 3/4" , #8 is 8/16"or 1/2".
The 3/4" ports are NPT style while the #12 are O-ring style.

 

[tthopskin@yahoo.ca]

it looks great ..if you have trouble with splitting put your cutting edge at a angle top point of wedge to the cylinder this will let it start to split a little before it gets into the block and keep log from jumping up ..i had to move mine twice .i thought i did not have enough power changed every thing ,when i changed the cutting head it fixed everything

 

[CDN Farm Boy]

28 inch stroke
20 gallon reservoir
ports on cylinder are 3/8 little worried about that

With a 28 GPM pump, I think you are going too small with the reservoir. General rule of thumb is the reservoir should be the same or greater than pump capacity

 

[mikefromnh]

I've been using a valve rated for 25 gpm with a 28gpm and dump valve. Works great.

 

[Wild Bill the 2nd]

I'm sure that you have seen them on other builds but I would highly recommend the auto cycle valve so that you just pull the levers and go grab your next piece. When you return the cylinder is already retracted and you put the piece on. Expensive but IMO worth it.

With that engine you will be able to raise the 28GPM side of the pump to its max of 900 PSI. You will be surprised just how much will be split without the pump going into low flow. It will be moving pretty quick and hit the wedge with 10 tons of force to pop it. And then you always have your 41 tons as a backup :thumbsup:

Where is the fuel tank? That engine will be thirsty! Probably a gallon and a half an hour at its rated speed. If you plan on running it at a lower speed you will probably have to cut back on the relief pressures so the engine won't stall. I'd just run it at speed, get it done quicker, and deal with the fuel usage.

Oil temps will likely climb pretty high with that small of a hydraulic tank. Are you planning on splitting year round? If so I would probably suggest an oil with a higher viscosity than the standard AW32.

Nice build!

 

[perkins78]

I've been using a valve rated for 25 gpm with a 28gpm and dump valve. Works great.

Don't know anything about a dump valve can you explain