Scored a big standing dead elm today. Didnt think any were left. Hows everyones wood gathering going ?
olpotosi said:I got a standing Dead Elm <snip> May have to rent some power....
jp
pybyr said:olpotosi said:I got a standing Dead Elm <snip> May have to rent some power....
jp
If it is anything like any of the standing dead Elm I've split, you'll want to rent a splitter- stringy stuff
nofossil said:pybyr said:olpotosi said:I got a standing Dead Elm <snip> May have to rent some power....
jp
If it is anything like any of the standing dead Elm I've split, you'll want to rent a splitter- stringy stuff
A significant splitter, at that. There's a guy here with a trailer-mounted splitter that's powered by a Volvo four-cylinder engine. Don't know the horsepower, but it drives a whopping big pump and a 6" diameter piston. Just the thing for Elm.
pybyr said:nofossil said:pybyr said:olpotosi said:I got a standing Dead Elm <snip> May have to rent some power....
jp
If it is anything like any of the standing dead Elm I've split, you'll want to rent a splitter- stringy stuff
A significant splitter, at that. There's a guy here with a trailer-mounted splitter that's powered by a Volvo four-cylinder engine. Don't know the horsepower, but it drives a whopping big pump and a 6" diameter piston. Just the thing for Elm.
I think I recall ome of the splitters now have 2-stage pumps-- one that moves the ram relatively quickly under medium loads, but that switches to a slower but more powerful mode when it hits a resistant log
trehugr said:Scored a big standing dead elm today. Didnt think any were left. Hows everyones wood gathering going ?
Tom in Maine said:God bless you guys!
I called my wood guy and ordered a cord for my house (we used 2/3 last winter) and 3 cord for my shop.
Either you are all younger than me or I am too lazy.
Or maybe both!
Tom in Maine
Fred61 said:trehugr said:Scored a big standing dead elm today. Didnt think any were left. Hows everyones wood gathering going ?
If someone offered me a dead elm I would promptly re-gift it to someone else. I've had experience with handling and burning elm in the past and none of it was good. I have a splitter with a 2 stage pump which will split 4 foot wood and there is nothing it won't split, but if that piece of elm is any larger in diameter than the wedge is tall, you will be prying it off the wedge and running it through again and maybe a third time. Not only that, elm leaves so much ash behind it's incredible. If you let an elm piece burn undisturbed, you can open the firebox door and view a piece of ash that is nearly the exact shape of the original piece of elm you loaded. It's an ash replica of the wood. Just lightly poke it and it crumbles. I've seen this on several occasions.
Actually the "speed" of the pump is constant, the volume of flow changes between the low pressure and high pressure modes.Gooserider said:pybyr said:nofossil said:pybyr said:olpotosi said:I got a standing Dead Elm <snip> May have to rent some power....
jp
If it is anything like any of the standing dead Elm I've split, you'll want to rent a splitter- stringy stuff
A significant splitter, at that. There's a guy here with a trailer-mounted splitter that's powered by a Volvo four-cylinder engine. Don't know the horsepower, but it drives a whopping big pump and a 6" diameter piston. Just the thing for Elm.
I think I recall ome of the splitters now have 2-stage pumps-- one that moves the ram relatively quickly under medium loads, but that switches to a slower but more powerful mode when it hits a resistant log
That is the standard on ALL the commercial splitters that I am aware of... The rated GPM that they give you on the label is the high-speed / low pressure rating, which is what the splitter should run at any time it's retracting, or doing a light log. When the ram hits resistance, and the hydraulic system pressure raises to about 800psi, the pump will automatically switch to a high pressure / low speed mode, that will keep boosting the pressure until either something (i.e. the log) gives, or you hit the bypass pressure at around 2500-3000psi. This "low gear" speed is about 1/4 the rating of the high speed mode - i.e. a 16gpm pump will move about 4gpm in high pressure mode...
This is a good deal, as to get the high pressure output, you need 2hp per gpm of pump output - however 90% of a splitters time is spent at very low pressure, which can be easily handled by a motor that only does 1/2 hp per gpm - thus you get a two speed pump, that in high speed mode needs 1hp for 2gpm, or an 8hp motor on a 16gpm pump, but then it shifts down into a low gear with half the output that is slow, but can still be driven by the same fairly small motor... A single speed 16gpm pump would have the same cycle time, but would need a 32hp motor, which would be loafing most of the time...
Gooserider
Technically correct, however the result that is visible to the operator is that the ram travel speed changes - since measuring flow volume is non-trivial, I don't really go into that as it isn't a useful difference.burningbill said:Actually the "speed" of the pump is constant, the volume of flow changes between the low pressure and high pressure modes.Gooserider said:pybyr said:nofossil said:pybyr said:olpotosi" date="1246045964 said:I got a standing Dead Elm <snip> May have to rent some power....
jp
If it is anything like any of the standing dead Elm I've split, you'll want to rent a splitter- stringy stuff
A significant splitter, at that. There's a guy here with a trailer-mounted splitter that's powered by a Volvo four-cylinder engine. Don't know the horsepower, but it drives a whopping big pump and a 6" diameter piston. Just the thing for Elm.
I think I recall ome of the splitters now have 2-stage pumps-- one that moves the ram relatively quickly under medium loads, but that switches to a slower but more powerful mode when it hits a resistant log
That is the standard on ALL the commercial splitters that I am aware of... The rated GPM that they give you on the label is the high-speed / low pressure rating, which is what the splitter should run at any time it's retracting, or doing a light log. When the ram hits resistance, and the hydraulic system pressure raises to about 800psi, the pump will automatically switch to a high pressure / low speed mode, that will keep boosting the pressure until either something (i.e. the log) gives, or you hit the bypass pressure at around 2500-3000psi. This "low gear" speed is about 1/4 the rating of the high speed mode - i.e. a 16gpm pump will move about 4gpm in high pressure mode...
This is a good deal, as to get the high pressure output, you need 2hp per gpm of pump output - however 90% of a splitters time is spent at very low pressure, which can be easily handled by a motor that only does 1/2 hp per gpm - thus you get a two speed pump, that in high speed mode needs 1hp for 2gpm, or an 8hp motor on a 16gpm pump, but then it shifts down into a low gear with half the output that is slow, but can still be driven by the same fairly small motor... A single speed 16gpm pump would have the same cycle time, but would need a 32hp motor, which would be loafing most of the time...
Gooserider
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