Big Tree Trunk Splitter

[woody paul]

You can't adjust it and if you look at picture there is a gap at the top so I cut a piece off the bottom so it sat lower so when log go's through smaller pieces at bottom are split off then put top pieces through again. 

[htb]

22 minutes ago, Billhook said:

I think that you might be arrested nowadays!

Only if they catch you. I saw nothing guv.

[Billhook]

Latest modification four way splitter.  Tried it on a horrible gnarly sycamore trunk.

Things would go a lot better when (if) it dries up a bit but I would call it successful and the four pieces should go through the Palax processor now.

 

 

[Sawchip]

Best sounding splitter I'v ever heard !! 

[Mark Bolam]

Great thinking outside the box.

 

Should have two ropes, mind.

[Mick Dempsey]

FWIW that’s the most pleasing thing I’ve seen on the internet all day, and I watch a lot of 

‘dogs reunited with their owner’ vids, so it’s a crowded field.

[Billhook]

12 hours ago, Mick Dempsey said:

FWIW that’s the most pleasing thing I’ve seen on the internet all day, and I watch a lot of 

‘dogs reunited with their owner’ vids, so it’s a crowded field.

Praise indeed especially when you consider what many find pleasing on the internet!

 

This is only the first phase just to see if the principle works.  Daisy Etta hardly noticed the tree in front of her .

Things will progress when it dries up a bit and I have somebody operating the Matbro and guiding me with hand signals.

 

Not quite sure where to put the two ropes Mark!

[Billhook]

Just as a matter of interest, how is the pressure of a hydraulic ram splitter measured.  Is there an industry standard or do you just estimate.  And how do you measure the splitting power of a kinetic splitter, or one which uses a mechanically driven fine thread ,  Then of course there are the screw thread cone splitters.   So how would you measure the splitting power of Daisy Etta as it is obviously  more than just the 20 ton weight of the tractor?

[Sawchip]

29 minutes ago, Billhook said:

Just as a matter of interest, how is the pressure of a hydraulic ram splitter measured.  Is there an industry standard or do you just estimate.  And how do you measure the splitting power of a kinetic splitter, or one which uses a mechanically driven fine thread ,  Then of course there are the screw thread cone splitters.   So how would you measure the splitting power of Daisy Etta as it is obviously  more than just the 20 ton weight of the tractor?

Its normal to rate the splitter power on the rams capacity and the pump used max pressure allowable. Yes..this can be a moveable feast as im sure you know hence how the power of some splitters seem to be higher than another of the same rating. Not a bad rule of thumb though should be.... "Rams rated tonnage generated " .."at rated Psi "..will give the potential ,as long as you supply the ram with the Psi and flow it needs. 

Your D7 will have a "Draw Bar " rating ...not a bad place to start with a estimate do you think? 

Edited December 18, 2019 by Sawchip

[Billhook]

22 hours ago, Sawchip said:

Its normal to rate the splitter power on the rams capacity and the pump used max pressure allowable. Yes..this can be a moveable feast as im sure you know hence how the power of some splitters seem to be higher than another of the same rating. Not a bad rule of thumb though should be.... "Rams rated tonnage generated " .."at rated Psi "..will give the potential ,as long as you supply the ram with the Psi and flow it needs. 

Your D7 will have a "Draw Bar " rating ...not a bad place to start with a estimate do you think? 

Drawbar pull in the Nebraska test was 26,286 lbs or 11.73 tons

Drawbar hp was 103

 

The basic tractor weighs 14.22 tons dry

to that has to be added the dozer blade and C frame                                                         2.5 tons.

                                          the hydraulic system and two large rams                                   1.0 ton

                                         the heavy underbody protection and grill  must be                     0.5 ton

                                         The Hyster D7N winch and cable      2750 lbs plus cable about  1.5 tons

 

Must be approaching 20 tons with fuel oil and water.

 

But I cannot see how the pull test equates to the push test where you have all that weight and power concentrated on a small area.  The drawbar test I would have thought is more about power and traction

The PSI with the dozer pushing must be huge.