35 or 40 ton rgn?

No, he means a flip neck on the trailer that attaches to a jeep (2 axles), 3 axle trailer, and a 2 axle booster on the back for 7 total axles on the trailer. The link below shows a picture.

Google Image Result for https://midcosales.com/wp-content/uploads/2019/08/2019-aspen-65-ton-lowboy-inv-1-1298x726.jpg

 

no that I s not what he means.

he means a short flip neck on the trailer 12-24” to allow for a 4 axle truck with a heavy steer axle - to be able to scale 40 tons net on 7 axles (1 3 3 combination).

given a mid 50’s tare weight on 7 to scale 40 ton - you would be in the mid 130s - say 135 or 136k

so you would need to load the steer to 16 -18k and the tridem groups to 59-60k each

 

Guess I’m still learning! Missed that one by a mile!

 

no worries

 

seems every setup i see often has the same number of axles on the tractor as the trailer; like 1 2 3 combo or 1 3 4 combo

 

i just bought this off brand no name (rampant=kaufman) 40T


i have a 3 axle tractor AND a fixed 5th which i need to remedy, so i will severely limited on loading the steer
the trailer weighs about 19k plus the flip so with the tractor i suppose i am 45k empty
seems like i might be limited to around 60k because I can't get weight forward
what do you all say
60k tridem 34k tandem 10k steer = 104k minus 45k I am at 60k am i right

 

actually is says in utah as an example under 125k gross i can permit 50k on the drives so maybe i could get 70k+ on the deck

Maximum Permit Weight Allowed
Single, Semi Annual, Annual Trip Permits for Overweight Non-Divisible Loads
Vehicles with a gross vehicle weight of less than 125,000 may be permitted on a single trip, semiannual, or annual basis as described below:

Single Axle
29,500 pounds
Tandem Axle
50,000 pounds
Tridem Axle
61,750 pounds
Trunnion Axle
60,000 pounds
Gross Vehicle Weight
125,000 pounds

 

Not exactly correct. Here is what you will likely get… and what you maybe allowed depending on state. The 20K axle states are going to be you limiting factor - states like Nebraska and Oklahoma that do not allow more than 20k per axle.

Assuming a 12 k steer axle (which you indicated) and the ability to slide forward some and backward some to adjust the weight transfer to the steer)

12k Steer axle
40K tandem drive axle
60K tridem trailer axles (assuming you shim - and that the trailer allows you to shim - between the tandem and the flip axle to balance the weight across the group

So that would 112k. Less you empty weight of 45k - you will be able to get to 67K ish payload - this will depend on the load and where in the well it sits and that you can position the perfectly.

There are plenty of states that will allow 46k(assuming your axle/rear ratings are 46k) on a tandem (you would have to slide the fifth wheel further back to take weight off the steer. Then you could get to 118K gross or a net of about 73k. It is up to you to determine route and whether you can go to 46k on the drives.

Then there are states that will allow you to go heavier on all the axles but the steer ( because you can never load your axles/tires higher than what the rating is) - places like OH, IL, WI all will let you go like 50K on tandems and 66k or more on tridems. But you you will have to load for the lowest axle group state you permit for.

 

you can permit:
steers 13500 with the right tires and axle rating 10k with your fixed 5th
drives 40000 or more depending on the state 40k with your fixed 5th
tridem 60000 or more depending on the state 60k
totals 113500 110k
minus 45000 45k
load 68500 or more possible 65k or more as you sit

please note some states will permit up to 55k on a tandem or more and 72k on a tridem or more
they also can permit up to 25k on a single
if you add a stinger you can permit more by stretching the space between axle 5 and 6 so that axle 6 is considered a separate axle group

you need to check the websites of your state and those you may travel through to determine the permit limitations for each state. you may be surprised how much you can haul in each.

 

As Rontonio mentioned, every state is different, example, Tennessee is 20 an axle, no more, Arizona, I think don't quote me, but I think they're like 53k on a Tridem but only like 57k on a quad. Ohio, I think is 46 on a tandem. This changes per each state. You really need to do your homework before you put weight on or you'll be in the ####. Nothing you can't handle..