Building an 8遅16 gooseneck dump trailer

[Peter 315]

I get that, but why do all flat deck trailers get pin weight added to their GVWR?
Makes no sense

Idk....:confused3: Strange I try and call my load trail dealer on Monday and see what he says....

 

[Hay Dude]

only option for loading equipment is those miserable ladder ramps. The longer ones are better for loading angle, but then I thought can’t you buy the shorter ones and just tilt the dump up slightly to get rid of the hump at the back edge of the trailer?

 

[Renze]

Maybe they just do 2 8ks for 16k for safety reasons and liability.....

You often get a lower rating for tandem use than for single use because of skid forces on tires and bearings

 

[nisaacs]

only option for loading equipment is those miserable ladder ramps. The longer ones are better for loading angle, but then I thought can?t you buy the shorter ones and just tilt the dump up slightly to get rid of the hump at the back edge of the trailer?

Yes, I do it all the time and I have a low pro. And yes, they are miserably heavy /awkward.

As far a GVW, there doesn't appear to be a standard. Manufactures are all different in how they arrive at their ratings. Some add pin weight, some don't. I think there is more at play than just the axle capacity, the frame, gooseneck and hitch all play a part. Then you add the owner/operator into the mix and you get any GVW, Lol.

 

[Hay Dude]

You often get a lower rating for tandem use than for single use because of skid forces on tires and bearings

But I see flatbed tandems rated 15-20% above their axles.
Could it be the load in a dump trailer is somewhat “ live “ , therefore it could shift and overload an axle?

 

[Hay Dude]

Yes, I do it all the time and I have a low pro. And yes, they are miserably heavy /awkward.

As far a GVW, there doesn't appear to be a standard. Manufactures are all different in how they arrive at their ratings. Some add pin weight, some don't. I think there is more at play than just the axle capacity, the frame, gooseneck and hitch all play a part. Then you add the owner/operator into the mix and you get any GVW, Lol.

PJ rates LESS than the sum total of their axles. 3)8k and 21k GVWR. Nice trailer though.

 

[nisaacs]

PJ rates LESS than the sum total of their axles. 3)8k and 21k GVWR. Nice trailer though.

I think in the case of three axles it goes back to my #59 post.

https://www.tractorbynet.com/forums/trailers-transportation/429012-building-8-16-gooseneck-dump-post5816850.html#post5816850

Or copy & paste:

I think part of the GVW rating considers two or three axles. It might not be reasonable to expect one axle to carry the weight of three, but is okay for one axle to carry the weight of two. This is in a momentary situation where the ground is uneven. Dexter does not recommend a three axle torsion, because of this. With springs and equalizers it can still happen but chances are way less.

 

[Hay Dude]

I think in the case of three axles it goes back to my #59 post.

https://www.tractorbynet.com/forums/trailers-transportation/429012-building-8-16-gooseneck-dump-post5816850.html#post5816850

Or copy & paste:

I think part of the GVW rating considers two or three axles. It might not be reasonable to expect one axle to carry the weight of three, but is okay for one axle to carry the weight of two. This is in a momentary situation where the ground is uneven. Dexter does not recommend a three axle torsion, because of this. With springs and equalizers it can still happen but chances are way less.

Yeah I get that, but then why not with a triple axle flatbed trailer?
I see 3) 7k axle trailers rated at 21k or more all over the place.

 

[TMGT]

Yeah I get that, but then why not with a triple axle flatbed trailer?
I see 3) 7k axle trailers rated at 21k or more all over the place.

Yup, my old car hauler trailer was a triple 7k rated at 21k.
My 10t is rated for almost 6k tongue weight (2 10k axles and rated for 20k lbs cargo capacity, trailer weight is about 6k)

My dump trailer has 2 6k axles and is rated at 16,800lbs gross.

What you are looking for is similar to what I want except I need a tag trailer. I want a 18ftx102in wide deckover dump with fold down or removable sides, oil bath 8 or 10k axles with 17.5 tires.
So far i haven't found anyone that makes that combination.
I think what we want would have to be custom, maybe I'll make one some day, maybe even make it a rollback style!

 

[4570Man]

Yup, my old car hauler trailer was a triple 7k rated at 21k.
My 10t is rated for almost 6k tongue weight (2 10k axles and rated for 20k lbs cargo capacity, trailer weight is about 6k)

My dump trailer has 2 6k axles and is rated at 16,800lbs gross.

What you are looking for is similar to what I want except I need a tag trailer. I want a 18ftx102in wide deckover dump with fold down or removable sides, oil bath 8 or 10k axles with 17.5 tires.
So far i haven't found anyone that makes that combination.
I think what we want would have to be custom, maybe I'll make one some day, maybe even make it a rollback style!

I wouldn’t care to have a pintle hook with a single 20k axel. It would turn so much better. A pickup couldn’t handle the hitch weight of something like that but a dump truck will do fine. I’ve seen some 5th wheel trailers like that but I don’t want a one trick pony truck.