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  1. #1
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    Default How heavy is too heavy for a box blade?

    I hate to start another box blade thread, but after reading a bunch of them several times, I'm still confused.

    I plan to get a six-footer to match the tire width. Everybody says to go with a heavy BB. I haven't seen many posts that correlated weight with tractor size (a few in Bob Skurka's excellent photo comparison thread). The posts I have seen in other threads seem to advise on bigger tractors than what I have.

    I have a Kubota Grand L3130, filled R4s, Cat 1 hook-up. I just can't figure out how heavy a box blade I should be looking for and how much is too much.

    I want a BB that will (with any luck) be all I ever need without being overkill. We have about 72 acres, 13 of which have been mostly stumped; I need to do a good bit of clean up. The driveway is about 2700 ft, mostly up-hill. We hope to build a house one day, and we plan to start on a tractor barn this fall, so the box blade should see some site work use. I doubt that I'll ever move up to a bigger tractor, because I also have a big skid steer. The equipment budget is only so much.

    Everything Attachments once recommended a United 672HD to me. It weighs only 445 lbs.

    The other day, my local dealer recommended the Land Pride LR72 and quoted me $1100. The BB1572 weighs 504 lbs. Land Pride recommends a max HP rating of 25 (using the 2WD specs) for that blade.

    On the other hand, the BB2572 max HP rating is 40. It appears to be sturdier, with 3/8" plate instead of 5/6", and plate instead of flat bar for the A frame. But it only weighs 549 pounds--not much heavier than the BB1572. The greater strength might make it better in general usage, and for adding weight compared to the 1572, but I don't think I want to fool with weights.

    For another example, the Bush Hog SBX720 specs a maximum 4WD HP at 35, and weighs 550 lbs.The MBX720 specs 55 HP max and weighs 640 lbs.

    I'm not really brand oriented. My local dealer carries only Land Pride. I'm perfectly willing to look farther afield, if something else is better, or better value for the money.

    thanks, bws

  2. #2
    Veteran Member
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    Default Re: How heavy is too heavy for a box blade?

    I would be looking for a used box blade. They do not wear very much and if they do you flip over the cutting edge. The weight of the blade provides more down pressure for cutting action. It would seem to me that a skid steer with a tooth bucket would do the same work.

  3. #3
    Platinum Member JohninCT's Avatar
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    Jul 2001
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    984
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    Central CT
    Tractor
    Struck Magnatrac 6000, Kioti DK40SE

    Default Re: How heavy is too heavy for a box blade?

    How heavy is too heavy for a box blade?

    I don't know that there is such a thing. I think you are on the right track... heavier, more rugged construction is going to work better and harder with less risk of getting bent up.
    "I don't do landscaping... I do battle with vegetation"

  4. #4
    Veteran Member
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    Dec 2009
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    S. W. Virginia
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    Kubota B3200, Ford NAA, IH 454D, Case 1845C

    Default Re: How heavy is too heavy for a box blade?

    I generally look for one that weighs more than 100lbs per foot. So for a 6' unit you should be over 600lb for one that will really work well. This also depends on how you want it to perform, the lighter ones will be fine for just pulling dirt along to fill low spots, but to really dig/excavate with a box blade you need plenty of weight. Just for comparison, a good commercial grade 6' box blade weighs over 1000lbs.
    Kubota B3200
    Ford NAA Jubilee
    International 454D
    Case 1845C skid steer
    JD 265

  5. #5
    Elite Member teg's Avatar
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    Raleigh, NC Hillsville, VA
    Tractor
    L2800 - HST

    Default Re: How heavy is too heavy for a box blade?

    Here's my take... Look for a used one... I would go at least 6" more on each side of the tractor, 84". Also, plan to add extra weight to make it work more, old crankshaft or another implement. As for how heavy duty you need depends on what you are going to use it for... If you are only spreading loose gravel out... you don't need much. If you are trying to rip roots or large boulders out, get something well made. What kind of soil are you working with?

    Here's to Bob Skurka...

  6. #6
    Super Star Member
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    Feb 2008
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    11,284
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    somewhere usa
    Tractor
    Deere 110tlb, 4520, x749, x758, L130

    Default Re: How heavy is too heavy for a box blade?

    With your Grand L 3130 I would limit the boxblade to a 6' model with a max weight of about 750 lbs. An advantage of a heavy boxblade or land plane/grader is you are able to hold a grade better without skipping across the top, it holds the blade in place to slice off a hard mound.

  7. #7
    Member
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    Jun 2010
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    38
    Location
    Southwest Minnesota
    Tractor
    New Holland TC40DA

    Default Re: How heavy is too heavy for a box blade?

    I have never used a box blade until the last couple of years. I bought a used one for a $100 bucks thinking it would fun to have one. To say I am shocked at what that thing will do is an understatement. I have built a pad for a new 40x88 shed, I have leveled the crown of a hill, I have leveled a 2 acre lot that is now planted to grass ect, etc. In my mind these things are an amazing tool. Funny thing about this is it's the cheapest tool I have for my NH boomer. I have a hyd cylinder on the top link of the 3pt and if i need to dig,,,,I retract the cylinder and let the scarfiers do their thing. Long story short, for the soils that I deal with (which has alot of 4-10" rock) the cheap light duty box blade I have, has worked extremely well. In my opinion, the heavy duty blades are more than I would need to spend money on. My opinion only. Good luck in your decision.

  8. #8
    Veteran Member
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    Kubota B3200, Ford NAA, IH 454D, Case 1845C

    Default Re: How heavy is too heavy for a box blade?

    Quote Originally Posted by DemcoEd View Post
    I have built a pad for a new 40x88 shed....
    How much soil did you have to move for that and how long did it take?
    Kubota B3200
    Ford NAA Jubilee
    International 454D
    Case 1845C skid steer
    JD 265

  9. #9
    Gold Member
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    Sep 2010
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    Location
    Flint Texas
    Tractor
    jd 2520

    Default Re: How heavy is too heavy for a box blade?

    Just a quick inquiry....It sounds like that you are confusing/misreading manufacturers specification of minimum HP ratings and reading them as maximum ratings. I cant see a manufacturer rating a 6' blade to maximum 25 hp or a heavy duty blade to maximum 40 hp....You might want to double check those specs.......

  10. #10
    Veteran Member RDrancher's Avatar
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    Aug 2011
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    North Texas
    Tractor
    New Holland TC35D, Kubota SVL90-2 CTL

    Default Re: How heavy is too heavy for a box blade?

    If it helps...I run a Bush Hog MBX720 (now referred to as MBX72) behind my New Holland TC35D w/ water filled tires. At 640 lbs I find it too light for a lot of tasks.

    Edited to add: I've had this box blade since 2004. I use it daily for work and it gets used hard. The only thing I've damaged are the replaceable ripper tips.
    Last edited by RDrancher; 08-30-2011 at 06:42 AM.

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