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  1. #1
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    L4630 Kubota

    Default BH92 Kubota backhoe. Will it lift 1,500 pounds? Please help.

    I've been a lurker here for quite some time. I'm buying a bh92 today if it will handle lifting and placing 1200 to 1500 pound pipes. Can this backhoe handle that kind of weight? Any help is very appreciated. The dealer said he thinks that it will handle 2,600 pounds, but wasn't sure. I just don't want to drop over 8 grand on something that might not handle the job it's bought for.

  2. #2
    Elite Member dfkrug's Avatar
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    NorCal
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    05 Kioti CK30HST w/ Prairie Dog backhoe

    Default Re: BH92 Kubota backhoe. Will it lift 1,500 pounds? Please help.

    Quote Originally Posted by Morse View Post
    I'm buying a bh92 today if it will handle lifting and placing 1200
    to 1500 pound pipes. Can this backhoe handle that kind of weight?
    Wow, that's a lot of weight to be lifting with a hoe attachment.

    The answer is not simple. You can lift 3 ways: with the boom, dipper, or bucket cylinders.
    The first is the weakest and the last is the strongest. Your tractor puts out 2500psi, and
    that's good. The kubota specs hopefully use that # and set the relief at 2500 on the
    hoe.

    The greatest digging force the hoe can produce is with the bkt cyl at max mechanical
    advantage. In lifting with the bkt cyl only (pulling instead of pushing), your force
    is substantially less than this so-called "breakout" force. That's due to the rod
    taking up space in your cylinder. You can calculate the reduced lifting force of
    your bkt cyl, knowing what the breakout force is. Of course, you can't lift very high
    with just the bkt cyl.

    The dipper cyl can lift, too, but substantially less than the bkt cyl. A similar calc
    can be used to estimate this so-called "craning force".

    I think you are asking an awful lot here, and all this lifting can over-pressure the
    boom cylinder, depending on how far out you are doing the lifting.

  3. #3
    Super Member Gary Fowler's Avatar
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    2009 Kubota RTV 900, 2009 Kubota B26 TLB & 2010 model LS P7010

    Default Re: BH92 Kubota backhoe. Will it lift 1,500 pounds? Please help.

    My B 26 is not limited by hydraulic forces in lift. It is limited in how much the tractor can lift prior to tipping up. I have reached out with the hoe straigth to the back with hoe fully extended and trying to lift a rock that raised the front end off the ground.
    2010 LS P-7010C 20F/20R gear tractor & FEL, 2009 Kubota B 26 TLB, RTV 900 Kubota,17 foot Lund boat with 70HP motor, 2012-20 ft 12k GVW trailer, 2011- 52" Craftsman ZTR mower, 2013 Ferris Zero Turn, 3 weed whackers, pressure washer, leaf blowers, 7 foot bush hog, 8 foot landscape rake , 8 foot 3 PH disc, 2 row cultivator, 350 amp Miller AC/DC welding machine and all the tools needed to keep them all repaired and running.

  4. #4
    Super Star Member J_J's Avatar
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    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: BH92 Kubota backhoe. Will it lift 1,500 pounds? Please help.

    Here are the specs for the BH

    BACKHOE DIGGING FORCE (Per SAE J49)
    With arm cylinder 2698 lbs. (12000 N)
    With bucket cylinder 4548 lbs. (20230 N)

    Products: BH92 Kubota Canada Ltd.

    You probably will not know the answer until you try to lift that weight.

    The hydraulics will either go to relief, or the tractor front end will lift.

    Maybe extra weights on the front.
    Last edited by J_J; 10-05-2012 at 07:28 PM.
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  5. #5
    Super Member
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    Default Re: BH92 Kubota backhoe. Will it lift 1,500 pounds? Please help.

    From JJ's link,

    Biggest bucket is 36", weighs 230 pounds and holds 5.7 cuft. Soil is about 100 lb per cuft, so the hoe is lifting 570+230 pounds or 800 total pounds. I'd guess that with max effort you could lift around 1000 pounds, but that would be about it. But, that's a guess based on kubota's typical over build.

    for comparison, my full size old ford hoe can lift 1800 pounds but has 4.5" cylinders vs the K's 3.15" cylinders. It also has a 36" bucket but it holds over 10 cuft. My opinion is that 1500 pound pipe may be too much for such a small hoe.

  6. #6
    New Member
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    L4630 Kubota

    Default Re: BH92 Kubota backhoe. Will it lift 1,500 pounds? Please help.

    I've run heavy equipment all my life, but when the economy tanked for us here in FL we moved all the equipment to the family farm in KY. I couldn't go due to my own family here. I know I'm wanting more out of this attachment than I can see it doing. The salesman kind of got my hopes up. I would guess 1,500 pounds is roughly twice what the attachment is meant to lift. I'm sure they quoted me digging force, which is much less than lifting. Thank you for the responses.

  7. #7
    Platinum Member MikeInEburg's Avatar
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    Emmitsburg, MD
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    Kubota B7800

    Default

    It really depends on how you need to lift. If lifting is simply picking up a pipe close to tractor,and carrying it, then yes, the backhoe will likely do that. But if you really want a crane, then a backhoe is the wrong attachment.

    "As you go through life, make this your goal: watch the donut, not the hole"

    Kubota B7800
    BH-75A Backhoe
    Rhino 60'' finish mower

  8. #8
    Super Star Member J_J's Avatar
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    Power-Trac 1445, KUBOTA B-9200HST

    Default Re: BH92 Kubota backhoe. Will it lift 1,500 pounds? Please help.

    I would think if the lifting point is close to the swing pin, and he doesn't have to lift high, but just move it horizontal, then the bucket has a large lifting force, and could move it .

    The BH weighs about 1800 lbs.

    Weight of the tractor is about: 3440 to 3815 pounds

    So I don't think lifting a 1000 lbs load will raise the front of the tractor if it is lifted close in .

    3-Point Hitch:
    I
    Rear lift (at 24"/610mm): 2,760 lbs [1251 kg]
    J.J.

    When I works, I works hard. When I sits and thinks, I goes to sleep.

    Git er done.

  9. #9
    Veteran Member
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    Doniphan, Mo.
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    Kubota L4240, B7800 & BX2660

    Default Re: BH92 Kubota backhoe. Will it lift 1,500 pounds? Please help.

    What are you going to do with the pipe after you lift it close to the tractor? Its one thing just to lift, but moving and putting in a ditch might be another thing.

  10. #10
    Gold Member
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    Colorado
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    Kubota MX5100, Unimog 404 w/ snowblower, Deere UTV w/plow

    Default Re: BH92 Kubota backhoe. Will it lift 1,500 pounds? Please help.

    The manual for the BH92 shows lift at around 900 lbs. It depends on the angles, etc. Lift is different than digging force. It is definitely a lot less than the LA844 loader base on the size of rocks I can pick up.

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