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12gpm single stage driven by 6.5hp.??

MR.FIREWOOD,

I would like to know what kind of single stage pump you have found that will push 12gpm @3000psi with only a 6.5hp. motor. I have tried to power a 11gpm Vickers pump with 12hp. and it would stall the motor before it hit 1000psi.. Every single stage pump in have seen needs 2hp. per gallon at 3000psi.
 
More Power or Just Enough?

Ok, Ok, Ok.

Lets say he fumbles thru the weldin pert of the splitter....and all the cyferin says he's got a 40ton splitter.... If he puts a 12" round of Ash in and mashes the forward button. How many tons of power will the splitter have to produce during the initial .5 - 1 second that it busts the log? Would it be all 40 ton or just a small percentage of the max power?
 
Ok, Ok, Ok.

Lets say he fumbles thru the weldin pert of the splitter....and all the cyferin says he's got a 40ton splitter.... If he puts a 12" round of Ash in and mashes the forward button. How many tons of power will the splitter have to produce during the initial .5 - 1 second that it busts the log? Would it be all 40 ton or just a small percentage of the max power?

Small percentage because you dont hit maximum tonnage untill you max out your PSI. If you have a gauge installed you can see at what PSI the wood decided to give. Very few times did I ever see my gauge go to 3000 while splitting. Even when the pump kicked into the second stage.
 
MR.FIREWOOD,

I would like to know what kind of single stage pump you have found that will push 12gpm @3000psi with only a 6.5hp. motor. I have tried to power a 11gpm Vickers pump with 12hp. and it would stall the motor before it hit 1000psi.. Every single stage pump in have seen needs 2hp. per gallon at 3000psi.

where did I say anything about 3000 PSI?? oh thats right I didnt :stupid:

the valves releif is set to 800 PSI, and produces a little over 4.5 tons.... more then enough for the 12" logs I give to my uncle, I dont think I have seen the gauge get above 500 psi even on a piece of oak, the 1/2" thick knife edge really slices through it without a problem and the wings open it up after it gets in about 4", the 6.5 does just fine, yes you can stall it if you want to abuse the machine and put stuff in it that it is not designed for, these were designed for 16-18" long logs up to 12-14" wide, not for splitting crotches in half and busting 4' oak rounds apart. plus if he ever wants to start tackling bigger stufff I can get a 13gpm Halidex 2 stage for $100 that will bolt right up and then ajust the valve and go.... hey I just do the best I can scrounging stuff.
 
where did I say anything about 3000 PSI?? oh thats right I didnt :stupid:

you said it in the post you deleted.

if you want to get crabby about this, we can get a moderator to go retrieve the post you deleted.

your flagrant rantings of the mouth are getting tedious imo.
 
what post I deleted? go ahead and get a mod to find this mystical post I deleted!!, I did not even know you could delete a post! I thought you had to be a moderator...

oh, wait you mean the post in the other thread that has nothing to do with this thread? gotcha, that one was deleted by someone other then me, think I am lying? ask them, I am done with you, your now going on my ignore list, congrats your the first person
 
There have been no deleted or edited posts on this thread.
you said it in the post you deleted.

if you want to get crabby about this, we can get a moderator to go retrieve the post you deleted.

your flagrant rantings of the mouth are getting tedious imo.
 
my apologies. i am mistaken, and mr firewood is right, he said it on another thread.

a general rule of thumb is that most commonly found hydraulics are designed for no more then 3000 psi. therefore, most splitters are designed to run at a maximum of 3000 psi.

if you want to run 3000 psi, a GREAT rule of thumb is that you get 1/2 gpm for every horsepower, assuming a gasoline engine. For example, if you have a 30 horse engine, you can reasonably expect 15 gpm.

UNLESS you 'cheat'. by 'cheat' i mean a 2 stage pump like sold by norhtern and surplus center as a logsplitter pump.

or, optionally you can run a 2 or 3 stage pump, and play some games with relief valves, dump valves, or something like that.

as an example, lets say you have 20 horspeower engine, and a dual pump, each 10gpm at max rpm. you could get 1500 psi out of each before teh engine stalled.

or, you could dump the hydraulics back to teh tank on one pump, and get 3000 psi out of the other.

this is what I'm doing on mine. i have a 23 horse engine, 10gpm on one pump, and 20 gpm on the other. huge flow once the log cracks. hoping for 4 second cycle times, running my conveyors and hydraulic saw.
 
Hi Ray. me from Oamaru, waitaki districts, North Otago ...New Zealand. hey how come u have a New Zealand cop car foto?. I reckon you yanks have the best of cars. Carl.
Got the pic from @Stihl working hard, who lives in Perth. He has never seen snow and got the pic from a relative. I ride daily, but indoors during the winter.
 


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