Check out this stump grinder...

[daveomak]

 

[forluvofsmoke]

Man, that's way easier and safer than improvised explosives, dozers, chainsaws and backhoes.

 

[pc farmer]

Remove the stump and drill a fence post hole. I like it. 8100 is a big tractor thou. Don't think I have one big enough for that.

 

[forluvofsmoke]

Yeah, Adam, it may not be so much for horsepower requirements as it would be the need for counter-weights up front with a lighter tractor, and the axles/wheels/tires/chassis to handle the weight on both ends. That whole long-reach 3-point hitch system with attachment probably weighs in at close to 3000lb, and it's hanging out there a lot farther than a normal 3-point. That's quite a chunk of cast iron housing and machined gears for the drive system, not to mention the extension shaft housing and tool. Not for your typical 4-6Klb tractor.

That JD 8100 weighs in at between 16.4Klbs and 18.9Klbs, depending on how it's equipped (front counter-weights, ballast fluid in tires [Calcium-Chloride], etc), not including a front-end loader. The 3-point hitch lift capacity is 10.4Klbs, with an optional 14.1Klbs capacity. It's built to handle the rigors of fully supporting the weight of row-crop tillage and planting equipment. It's more than enough for the above shown specialty equipment, I'm sure.

The JD 8100 with ~142 draw-bar horsepower is a small machine compared to what I operated back in the day (265HP at the draw-bar & ~28Klbs riding on 8 full size tires ['79 IH model 4786]), but it's not a toy by any measure.

Just some trivia for us old farm equipment buffs...well, let me rephrase that as old, but not antique...been around some antiques, too, but not a lot...there was some pretty awesome stuff being restored or preserved back in my day.

Eric

 

[chef jimmyj]

I could use that. Got a stump about same size in the front yard...JJ

 

[dirtsailor2003]

We just had some stumps removed at my moms house. The guy had a similar, but smaller set up. Stumps be gone!

 

[forluvofsmoke]

This is starting to make me wonder how long this technology has been in use, or at least been on the drawing boards. It's a similar concept to the screw-type log splitters (minus the cutting paddles) that have been around for 25 or so years, which are far more efficient than a hydraulic ram type splitter. We used a ram splitter that we home-built and mounted on a 3-point hitch...worked OK, but green wood could cause hang-ups when it wouldn't fully split...maybe not the best ram splitter design, but worked for most of our wood splitting. The main drawback to the screw splitters I've seen was no uniformity in splitting size, and multiple splits from the same piece was difficult. Oh, that and they were slow if you had a low-volume pump to operate the ones with a hydraulic motor...some were direct PTO driven...non-reversible being one set-back, and lack of good speed control being another. Off topic there...

The stump busting rig in the video appears to have approx 34-36" diameter sweep (maybe bigger) with the paddle cutters and could probably handle a stump three times the diameter they demonstrated it with, if worked with multiple entry points...maybe 8-9ft diameter...get a little more creative and start thinking about 12ft+ diameter. That said, a rig 1/3-1/2 that size could likely handle a 6ft+ stump with a determined and properly trained operator. That would open things up for more affordability and feasibility to owners of smaller tractors. If this is a useful tool for you, but far too large, I bet some digging around on the net will find you a smaller one, and maybe it won't even break the bank. If you're ambitious, build one...finding a compact gear-case stout enough to handle all that torque being the biggest hurdle, IMHO. Then, there's drive type...do you want direct PTO drive (non-reversing) or a hydraulic motor (reversible), and then figure out what ratio in the final drive gear-case. Ah, I'm rambling now...getting late and I'm tired...carry on.

Eric

 

[joe black]

I've had a number of stumps chewed up, but I've never seen anyone with a grinder like that. That grinder is the REAL deal.

 

[crankybuzzard]

So, after it's all said and done, you can kick the "shavings" back into the hole, build a fire on top of them, add a grate of some sort, and do a true pit cook!

 

[joe black]

What a great idea Charlie. I'm surprised that Weber hasn't already marketed a grill grate especially for this. :grilling_smilie:

 

[dirtsailor2003]

 
So, after it's all said and done, you can kick the "shavings" back into the hole, build a fire on top of them, add a grate of some sort, and do a true pit cook!

Done! Schwenk stump pit

29497680480_29b3b81ee9_c.jpg

• dirtsailor2003
• Sep 19, 2016

 

[Bearcarver]

Holy@#$%^

Biggest Plunge Router I ever saw!!!

Bear