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  1. #1
    Member
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    Jan 2010
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    47
    Tractor
    John Deere 4120

    Default Box Blade sizing

    I have a JD 4120 CUT with R4 tires what size box blade do you reccomend?
    Need one for driveway maintenance & other dirt work.
    Are any brands heavier duty than others?
    What's the price range?

    Thanks,
    D6
    John Deere 4120, 400CX Loader, 73" bucket
    Landpride 2572 Boxblade

  2. #2
    Super Star Member
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    Feb 2008
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    11,787
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    somewhere usa
    Tractor
    Deere 110tlb, 4520, x749, L130

    Default Re: Box Blade sizing

    I have a Frontier BB1284 which I really like, this would be a good match for your tractor too.

  3. #3
    Elite Member dex3361's Avatar
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    Aug 2008
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    3,571
    Location
    N. of Charleston WV
    Tractor
    Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm

    Default Re: Box Blade sizing

    I would recommend a box blade that just covers the width of your rear tires.
    I bought a Box Blade that is wider than my tire width and it can be a pain when in the woods because you tend to get hung on trees. Land Pride and Woods seem to be very heavy and expensive too. There are others that are HD and would serve you well search the term box blade and after you read a few days you will see what I mean. I haven't purchased a BB lately so I cant help on the price.
    Randall



    1Timothy Chapter 2:
    3 For this is good and acceptable in the sight of God our Saviour;
    4 Who will have all men to be saved, and to come unto the knowledge of the truth.
    5 For there is one God, and one mediator between God and men, the man Christ Jesus.
    From: The HOLY BIBLE

  4. #4
    Platinum Member eepete's Avatar
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    Oct 2009
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    962
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    Efland, NC
    Tractor
    JD 4520, Kubota B21, JD 318

    Default Re: Box Blade sizing

    While I'd love to have Steve's BB1284, the sticker shock had me ending up with a BB3272. Only used it a few times, but so far so good. Am adding "Top and Tilt" (TnT) to make it even more useful, including using it to maintain my 800' gravel driveway.

    Pete
    '09 JD4520 Cab (60HP), '97 KubotaB21 TLB (21HP), MX6 rotary mower, SB1106 6' Sickle Bar, BB3272 6' box blade, GradeMaster 7' Landplane, 6' landscape rake, Woods GTC 40" tiller, PHD 9" auger, 4' x 8' chain harrow, '90 JD318 (18HP gas) with 48" MM mower, 54" front blade, 47" snowblower.
    Volunteer Firefighter.

  5. #5
    Super Star Member Diamondpilot's Avatar
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    Jan 2007
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    16,108
    Location
    Daleville, IN
    Tractor
    Jinma 254/284 Ford 861 Powermaster at work

    Default Re: Box Blade sizing

    Rule of thumb is 1' per 5 HP at the Draw Bar, not the engine. If your tractor does not list DB HP use PTO and it will be close enough.

    Chris

  6. #6
    Platinum Member
    Join Date
    May 2002
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    740
    Location
    Close to Petersburg
    Tractor
    Mahindra 2516

    Default Re: Box Blade sizing

    That is a good rule of thumb! I used a 48" BB on my kubota BX22 and it did "OK" . My Kioti 3054 was too big for it. I should have stepped up to a 60" BB.

  7. #7
    Super Member 3RRL's Avatar
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    Oct 2005
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    6,825
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    Foothills of the Giant Sequoia's, California
    Tractor
    55HP 4WD KAMA 554 and 4 x 4 Jinma 284

    Default Re: Box Blade sizing

    The HP sizing is a good rule of thumb.
    But I am on the other side of that. I believe that a box blade that extends a little past the width of your rear tires (approx 3" to 6" per side IMHO) is the way to go for a couple reasons. Of course there are drawbacks like dex said if you're not careful.

    First, if you are dragging loose dirt, as long as you have traction, you should be able to move a large pile easily. Digging with it might be harder on the tractor, but that's what the scarifiers are for. Always use them to break up hard ground first. You don't need to "bury them" to full depth either. Just break up the surface and move that dirt, then do it again if you need to go deeper.
    Second, if you are boxblading around buildings or curbs, you want to be able to get as close as possible without having to drive on the surface. When the blade sticks out a little past the rear tires, it's doable. Of course be careful not to "hook" anything.
    Third is when you tilt the blade severely to say cut gutters, you'll find the side of the blade which is down, gets closer to the center of the tractor than when carried level. That is, as you tilt the boxblade or blade sideways, the geometry of the 3pt rotates it so it doesn't stick out as much as before.
    Last is that with a larger boxblade you will, naturally, be moving more material and consequently, get more done in the same period of time.

    They key (IMHO) is to have enough traction.
    Most of our tractors will run out of traction before we actually stall it out. (Note, most I say). But with a good front weight or fel, and 4wd engaged, you can pull a heck of a lot with it. There are several good threads with lots of photos and examples about boxblade work. They could give you an idea which way you want to go.
    Here are a couple you might want to check out.
    Rob-

    Beginner's Guide to Using a BoxBlade

    Various BoxBlade Uses
    Rob-
    ...The Older I get...the Better I Used to be...
    Member of the Month

  8. #8
    Elite Member dex3361's Avatar
    Join Date
    Aug 2008
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    3,571
    Location
    N. of Charleston WV
    Tractor
    Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm

    Default Re: Box Blade sizing

    As usual all god points and you have much more B experience than myself and I ended with my BB sized the way you suggested and the only place it is an issue is in the woods.
    Randall



    1Timothy Chapter 2:
    3 For this is good and acceptable in the sight of God our Saviour;
    4 Who will have all men to be saved, and to come unto the knowledge of the truth.
    5 For there is one God, and one mediator between God and men, the man Christ Jesus.
    From: The HOLY BIBLE

  9. #9
    Elite Member
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    MtnViewRanch's Avatar
    Join Date
    Mar 2005
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    8,964
    Location
    4000\' mountains of Southern California
    Tractor
    Mahindra 7520, Mahindra 3215HST, Case 580 extendahoe, Case 310 dozer, Parsons trencher, Cat D6,

    Default Re: Box Blade sizing

    I disagree with the HP per foot theory. If that were true than I could use a 13' wide BB with my 7520. My tractor weighs about 12k pounds and I can tell you that I can stop it cold with the rippers on my 81" roll over box blade. An Industrial machine could have a 16' wide blade. Guess what, 8' is about the widest BB that is even made. There are to many variables to automatically say that x amount of HP = x width blade. Yes typically the width used is either the tread width of the machine or maybe up to 12' wider, (6" either side) but weight and height (how many cubic feet carried) of the implement to be purchased should also be considered.
    Brian
    Top and Tilt Kits by Fit Rite Hydraulics

  10. #10
    Member
    Join Date
    Jan 2010
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    47
    Tractor
    John Deere 4120

    Default Re: Box Blade sizing

    Thanks to you all for the information.
    Thanks 3RRL - Rob for the "Beginners guide to using a box blade" & also the "Various box blade uses" threads they are very good.

    Thanks again everyone,

    D6
    John Deere 4120, 400CX Loader, 73" bucket
    Landpride 2572 Boxblade

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