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  1. #11
    Platinum Member Sackett2's Avatar
    Join Date
    Feb 2008
    Posts
    714
    Location
    Eugene, Oregon
    Tractor
    Montana 4344HST

    Default Re: Middlebuster for a trench, rocky soil

    Quote Originally Posted by Baby Grand View Post
    It's at a glacial moraine - where a glacier halted, briefly, and dumped car sized boulders, cobbles and till, all in a big pile on top of ledge.
    I wonder what "Briefly" is for a glacier?
    Sackett aka "Steve"
    TSgt, USAF Ret. 1981-2001
    2008 Montana 4344HST
    4' Brush Hog; 6' rear blade; 6' box blade

    "Thanks for the tractor Rick"
    In memory of my brother
    Richard A. Hansen 1961-2008
    SSgt, USAF Ret. 1980-2000

  2. #12
    Elite Member Baby Grand's Avatar
    Join Date
    Nov 2007
    Posts
    3,281
    Location
    Windsor, CT.
    Tractor
    L3240GST, B2320HST, B5100D & G5200H

    Default Re: Middlebuster for a trench, rocky soil

    A few hundred years?
    It wasn't a terminal moraine.
    Those can create really big features, things like Cape Cod & Long Island
    That's the problem with trouble.
    It always starts out as such fun."
    - Randall Brown

  3. #13
    Gold Member Herkypilot's Avatar
    Join Date
    Oct 2011
    Posts
    335
    Location
    Concord, NC
    Tractor
    Kubota MX5100 DT 4x4

    Default Re: Middlebuster for a trench, rocky soil

    Quote Originally Posted by Baby Grand View Post
    I have a King Kutter (TSC Farm Force label) subsoiler that rips up to about 20" deep if I sink it to the crossmember:


    I'd give a long, hard look at the Fred Cain subsoiler that Ted mentioned. They have a very good reputation and having shear pin protection could save your bacon if you "find" a really big rock.

    My subsoiler lacks shear pin protection - that's a modification on my To-Do list.

    -Jim
    Yes, shear pin protection is important. I bent up my first subsoiler the first day I used it behind my 50 hp tractor. Took it back for a refund and purchased a Fred Cain. Too many unknowns when digging in soil that hasn't been previously disturbed.

  4. #14
    Gold Member
    Join Date
    Nov 2010
    Posts
    331
    Tractor
    John Deere 855

    Default Re: Middlebuster for a trench, rocky soil

    It is pretty rocky here. Not good for crop land on my place any way.
    I also have a lot of tree roots to contend with.
    I have had acceptable luck with these two home made tools.
    First using the sub soil tool then the other after that.
    Posting a picture may be the hardest part of the job.
    Good luck
    ------
    Middlebuster for a trench, rocky soil-old-new-projects-1.jpg

  5. #15
    Member
    Join Date
    May 2011
    Posts
    27

    Default Re: Middlebuster for a trench, rocky soil

    Quote Originally Posted by Herkypilot View Post
    Yes, shear pin protection is important. I bent up my first subsoiler the first day I used it behind my 50 hp tractor. Took it back for a refund and purchased a Fred Cain. Too many unknowns when digging in soil that hasn't been previously disturbed.
    My 'shear pin' right now is a pair of unloaded R-4's on the 2720. Apparantly I can pull hard enough to get the job done, but spin the tires before anything breaks. Hit the buried porch for the old log cabin that was here a century ago, didn't break anything. Now I'm stopped, I need to figure out where to adjust fire and put this line. There was maybe a foot gap I was hoping to hit between the old porch and the new, that's not happening now.

    Dad keeps wanting to just put it on the big tractor and try it, seems like a bad idea. 75 HP John Deere, 4wd, front end loader, rear wheel weights, brand new loaded tires. I can hear something breaking already.

    My dad keeps discounting the 2720. We both look at the tractor very differently. I see a small, medium duty farm tractor that happens to have a belly mower. He sees a lawnmower that happens to have a hitch on it. I wouldn't want to put long days in a field working it somehow, but it does great at little stuff like this. I actually did rake with it once, it performed well but I wouldn't want to do it again. The 'high' on the hydrostatic was lacking power without a lot of RPM's, and the low was too slow. Flat ground was great, but I started working a hill and it was a bit much for it. I should have probably gotten an older model with a real transmission. My friend has an older 25 hp kubota, my JD is a 31 hp, and his Kubota has more power I think due to the transmission.

  6. #16
    Member
    Join Date
    May 2011
    Posts
    27

    Default Re: Middlebuster for a trench, rocky soil

    Quote Originally Posted by Wyobuckaroo View Post
    It is pretty rocky here. Not good for crop land on my place any way.
    I also have a lot of tree roots to contend with.
    I have had acceptable luck with these two home made tools.
    First using the sub soil tool then the other after that.
    Posting a picture may be the hardest part of the job.
    Good luck
    ------
    Click image for larger version. 

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ID:	277270
    Good work on those. I should have made something, I have enough going on right now without engineering some equipment. I tend to over-build and over-think everything, and by the time I'm done I end up with a heavy tool that took all day to build but you probably couldn't break if you had to. I built a carry-all thing last winter, it works great except the tractor is half loaded just hooking to the empty box. I use it on the big tractor now. I'd hate to see it if I'd actually designed it for the big one.

  7. #17
    Platinum Member
    Join Date
    Aug 2012
    Posts
    982
    Location
    Hartford, SD
    Tractor
    Kubota L3400F

    Default Re: Middlebuster for a trench, rocky soil

    Quote Originally Posted by Wyobuckaroo View Post
    It is pretty rocky here. Not good for crop land on my place any way.
    I also have a lot of tree roots to contend with.
    I have had acceptable luck with these two home made tools.
    First using the sub soil tool then the other after that.
    Posting a picture may be the hardest part of the job.
    Good luck
    ------
    Click image for larger version. 

Name:	Old and New projects 1.jpg 
Views:	436 
Size:	655.7 KB 
ID:	277270
    We call that one on the left a "ripper tooth" in my neck of the woods...err prairie.

  8. #18
    Platinum Member
    Join Date
    Apr 2012
    Posts
    743
    Location
    pa
    Tractor
    kubota 7040sud

    Default Re: Middlebuster for a trench, rocky soil

    in rocks it will go 4-6 inckes max non rocks 8 10 inches i used one alot i would say get a plow they go 12 14 inches deep them mb at tsc are junk i busted a few buy a used plow and be done with it with a plow u will just brake shear pin with a mb you will twist it like a prezel

  9. #19
    Super Member
    Join Date
    Feb 2008
    Posts
    8,826
    Location
    somewhere usa
    Tractor
    Deere 110tlb, 4520, x749, L130

    Default Re: Middlebuster for a trench, rocky soil

    I would definately run the subsoiler point several times loosening the soil over a 12" width before sinking the middle buster down.

  10. #20
    Gold Member pwright's Avatar
    Join Date
    Aug 2012
    Posts
    264
    Location
    Las Cruces, NM
    Tractor
    2012 Bobcat CT225

    Default Re: Middlebuster for a trench, rocky soil

    I needed to run some polyline across a packed down dirt road on the property and happened to run across this thread before heading up there yesterday. The sub-soiler sounded like just the ticket and so made a quick side-trip to Tractor Supply on the way up to the property to pick one up. Figured worst case was that I'd be out $160 bucks.

    It did a fine job of cutting through the packed dirt and kicked up some good sized rocks. One of them stopped me dead when I first hit it but a second pass just pulled it up to the surface. When I took it off later to put the box blade back on it seemed to have come through unscathed.

    For some reason I was expecting it to actually make a trench though. While some small amount of dirt was displaced through the action of breaking it up it wasn't really a trench. The good thing is that it only took a few minutes of work with a shovel to scoop out all the now loose dirt and rock so that was a great time and back saver. Getting the line across the road without have to worry about it being run over was the goal and that mission was accomplished.

    So was I, in my ignorant newbie state, expecting too much or did I use it wrong (also highly likely)? Would using a middle buster after the sub-soiler give me a more trench-like result? I've got about 950' more of polyline I wouldn't mind burying if I don't have to do it by hand.
    Phil

    Bobcat CT225 with FEL and Bobtach.
    Landpride box blade, post hole digger and pallet forks.

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