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  1. #1
    Veteran Member Hooked_on_HP's Avatar
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    Coal City IL
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    Ford 1900 FWD Kubota F2100E

    Default Channel iron strength

    I am going to build a 5'x8' tandem axle dump trailer. Part of the frame is going to be 3x1.5x3/16 channel. Is channel strength the same whether it is used flat or on edge?
    Bill

  2. #2
    Elite Member whistlepig's Avatar
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    Preble County, Ohio
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    Kubota B7800 with FEL

    Default Re: Channel iron strength

    Quote Originally Posted by Hooked_on_HP View Post
    I am going to build a 5'x8' tandem axle dump trailer. Part of the frame is going to be 3x1.5x3/16 channel. Is channel strength the same whether it is used flat or on edge?
    Bill
    The channel strength won't be the same. The load bearing against the 1.5" side is stronger. For a 5'x8' trailer I wouldn't think it would matter. 3x1.5x3/16 will be more than enough no matter what direction it is turned.

  3. #3
    Bronze Member
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    Default Re: Channel iron strength

    Put it on edge.

  4. #4
    Platinum Member Steve C's Avatar
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    North Central Michigan
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    Farm Pro 2425

    Default Re: Channel iron strength

    Quote Originally Posted by Hooked_on_HP View Post
    I am going to build a 5'x8' tandem axle dump trailer. Part of the frame is going to be 3x1.5x3/16 channel. Is channel strength the same whether it is used flat or on edge?
    Bill
    no, it is much stronger on edge. But if you are going to need tandem axle's you will need to use something larger to get the capacity of 2 3500 lb. axels
    Craftsman GT 18
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    Farmpro 2425

  5. #5
    Super Member California's Avatar
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    Sonoma County
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    Yanmar YM240, and now just one YM186D

    Default Re: Channel iron strength

    While everyone is here - - What is the minimum size channel to buy for lightweight forks?

    I made a set of light strap-on forks (see photo in this thread) that match my lifting capacity. Now I want to make a couple more that are longer. Occasionally I will use all four to carry brush and prunings to the burn pile.

    Recommendation? The loader capacity at the pins is around 700-800 lbs, maybe 500 lbs safe carrying weight on a pallet, so I don't need HD here.

    What size channel should I buy?

  6. #6
    Veteran Member Hooked_on_HP's Avatar
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    Ford 1900 FWD Kubota F2100E

    Default Re: Channel iron strength

    It is going to have 2- 2000lbs axles with springs. I will probably never put over a ton in it. The reason for the tandem is so I can load the trailer unhooked, back up to it ,raise the TPH which has a ball mounted on it and drive to where I want to dump. Dump the load drive back to the pile ,lower the TPH to unhook and reload and repeat as necessary. I also figured the tandem would spread the weight out and would cause fewer ruts.
    Bill
    Last edited by Hooked_on_HP; 01-01-2010 at 11:34 PM. Reason: added info

  7. #7
    Super Member JB4310's Avatar
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    Central CT
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    J.D. 4310 E-hydro

    Default Re: Channel iron strength

    This is off road use only? just curious.

    Most trailers utilize channel, for that matter anything with a frame, from a truck to older cars of course use channel for frame. Never seen one with the channel flat, except maybe a cross member.

    Channel is pretty tough stuff even laying flat but has more strength standing on edge, think of a 2x4 (almost the same size) easy to see what the stronger position would be.

    It's a dimensional thing, whether a channel, an angle, an I-beam or even a wood beam, which ever has the greater dimension, that's the side you want in vertical profile.

    You're not wasting any time finding a project for that new metal working tool you got

    JB.
    JD 4310; E hydro, 300CX, 48 BH, 60" box, 72" rake, 72" rear blade, cast pallet forks, 48", 61"HD & 73" high volume bucket.
    FORD 1700; 2 WD, 2600 hrs.
    JD 320; Hydra lift, 48" deck and 48" snow blade.
    2007 Dodge Ram 3500, Cummins 6.7L, Aisin 6 speed, 9ft utility body.

  8. #8
    Veteran Member Hooked_on_HP's Avatar
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    Default Re: Channel iron strength

    It will be 99% off road use(I have 3 other trailers)but you never know. I was looking at the Country Mfg. Country Manufacturing, Inc. Off road wagons and trailers for tractors and ATV. but didn't like the way they had a single pivot on the tandem or the fact that is was off road only. It is also just an excuse to build somthing usefull that will keep me in the shop.
    Bill

  9. #9
    Veteran Member
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    Ford 1920 4x4 (traded in on Kubota). Case 480F TLB w/4 in 1 bucket, 4x4. Gehl CTL60 tracked loader, Kubota L4330 GST

    Default Re: Channel iron strength

    Quote Originally Posted by Hooked_on_HP View Post
    The reason for the tandem is so I can load the trailer unhooked, back up to it ,raise the TPH which has a ball mounted on it and drive to where I want to dump. Dump the load drive back to the pile ,lower the TPH to unhook and reload and repeat as necessary. Bill
    Bill,

    Don't pull a dump trailer with a 3PH. When you raise the bed and the load shifts to behind the rear axle, there is nothing keeping your 3PH from lifting.

    John

  10. #10
    Veteran Member Hooked_on_HP's Avatar
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    Default Re: Channel iron strength

    John you just screwed up my plan.Thank you. I hadn't thought about that. I will have to give this a little more thought.With the tandem set to the rear I wonder it it will raise the tongue?
    Bill

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