Weight rating of trailers

The weight rating is the cargo capacity of the trailer. So a 70 ton rating means that the trailer itself can carry 70 tons without risking structual damage.

 

Here is the link to Fontaine's brochure on that particular trailer.
It has all the info you'd want to know, plus more.

Fontaine Mag 70

Also a photo, with the basic description/specs.

 

I would like to see someone try putting 120,000 on an uluminum tri axle step deck!
I saw someone put aproxx 93,000 on an aluminum tri hiboy...it hauled it...but the trailer was negative, and didn't come back when they unloaded..nice Tri bro!

 

You also need to see what the rateing is for in the feet. I had a 85 ton trl. rated for in 16'. So that means you need to have the load spread out on it's foot print at least 16' When loading it in a smaller foot print like 10' you are over loading the rating. Good chance of ruining the trl.
Company I was leased too had 85 ton trls. rated in 20' trying to save weight and after about 1 1/2 years the trls. started going neg. as alot of theirs lds. were like 12' foot print

 

most will haul more than their rated.you will know when exceeded when it breaks

 

Would need more than 3 axles on the trailer if you ask me. I get permits for well over 46k on the drives around here all the time though. Not with that much weight on the trailer though. macs trailers are rated up to 120k spread out over 48ft and 100k in 20ft.

 

If you could get permitted for what the trailer axles are made for, it would be easy. 14+23+23+20+20+20=120,000. I have hauled 120,000lbs. on 6 axles with my loader trailer many times. Its a little over whats legal here, but trucks and trailers have held up for years with that kind of weight.