Tractor Trailer Match 3 axle rgn

Discussion in 'Heavy Haul Trucking Forum' started by v8don, Jul 24, 2022.

  1. v8don

    v8don Bobtail Member

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    Hey I wanted to know for a 3 axle rgn 55 ton if a 3 axle tractor is suitable or would I need a tractor that have tri axle drives? Also, would it have to be double frame? Because I’ve seen many 3 axle trucks pulling 3 axle rgns.

    Thank you
     
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  3. Oxbow

    Oxbow Road Train Member

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    Too many variables to answer. 20k steer, state laws, wheelbase..........

    You can definitely get by with a three axle tractor but won't be able to permit a 55 ton load in most states.
     
  4. v8don

    v8don Bobtail Member

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    I’m new to this but what if you plan to haul freight at maximum 80k pounds as opposed to maxing the whole 55 ton out? Would I be able to permit with a 3 axle tractor?

    Thank you for your input.
     
  5. Oxbow

    Oxbow Road Train Member

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    80k load? Your empty weight will probably be around 45k, so 125k gross. I believe you will be able to permit that in many states, but weight distribution may be a challenge. Some states have 20k max per axle. In those states you will only be able to go 100k plus your steer, and getting the weight balanced will be tough.
     
  6. nikmirbre

    nikmirbre Road Train Member

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    You'd do better with a 4 axle...... as @Oxbow says you'd be 45-50k empty. I know a few states east that only allow 20-22 per axle one your drive.....

    Weight distribution will be your biggest hurdle. If your set on a 3 axle tractor then just get a 35-45 ton RGN....
     
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  7. nikmirbre

    nikmirbre Road Train Member

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    well after re reading.....that 55 ton have a place for a 4th axle?
     
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  8. v8don

    v8don Bobtail Member

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    Thanks so a 4 axle tractor would match with a 3 axle rgn 55 ton and a 3 axle tractor matches with a 2 axle 35 - 40 ton rgn? Sorry for all the questions just new to heavy haul.
     
  9. welldigger00

    welldigger00 Light Load Member

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    I’ve got an Xl stretch, with flip third, and a heavy haul double frame three axle Pete. I’m almost 50k unlaiden. I can put 59 on thr tridem, 46 on the drives an 20 on the steers according to my permit. It’s easier said than done. I’ve got a flip neck extension that helps
     
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  10. Rontonio

    Rontonio Road Train Member

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    unless you are running only a limited area - you cannot bank on 46k on a tandem group. Many states restrict axles to 20k per axle - so only 40k on a tandem. Plus you can only go 20k on the steer if it is rated for it. If you are using a general freight truck it is much more likely a 12k or 13.3k steer.
    Next if you stay with a 35 or 40 ton trailer your empty weight will be lower and you likely will be able to get a longer well. A 55 ton is going to have 24’or 26’ for the most part. A 35 ton tandem with a flip or 40 ton tandem with a flip will likely have 29’ well. Some even have wells as long as 33’(but they must be permitted in some states for length or are non compliant in California)


    Having said all this - you are not going scale 80k payload as a 6 axle except in very limited states like perhaps Ohio or Michigan.

    bottom line is you can’t haul big loads without big equipment - there I said it. And the OP has stated he doesn’t really know heavy hauling. So, the answer is if you are going to jump in - perhaps you should start as a 5 axle or 6 axle set up and learn your way.

    the tickets will be cheaper as 5 axle than try tong to be a 7 axle.
     
  11. Oxbow

    Oxbow Road Train Member

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    There are a lot of options for trailers. 40 or 50 ton trailers can have tridems, or tandem with a detachable 3rd axle. A 55 ton trailer is qoing to be heavy for hauling 40 ton loads, whereas hauling the same load with a lighter trailer will make permits less expensive. Also, you will be able to haul heavier legal loads.

    It really depends on what you intend to haul.
     
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