Hi chaps, after an answer on something.
Can anyone tell me what max weight you can put on the front and rear of a 4 axle dennison splitter trailer? I.e if the rear was dropped, what max weight would be allowed on the front section, in terms of not overloading the rear axles on a 6x2 unit, and the single axle on that section. dennisons website states the front can run UP to 24 tonnes but I’m unsure If this is correct?
Hope that makes sense
AaronR
It does make sense, but there are too many unknowns, for example what is the tare weight on each axle and what does the front half of the chassis weigh?
Assuming that an empty unit puts nearly all its maximum to the front axle and nothing on the midlift, then the tare on the drive axle is likely to be around 3.5tonnes, so you can safely put at least 14tonnes through the pin and be legal, then the trailer axle can take whatever the difference between its tare and maximum rated weight, that could be up to 10.5tonnes gross, depending on the axle and which tyres it has fitted.
I don’t think there is any way to get a 24t box on four axles as the maximum allowed is 32tonnes and your unit and the box on its own will take up all of that, so unless the trailer is made out of helium…it ain’t happening 
Although there was IIRC an increase to 35tonne maximum on four axles…so if that’s right and the front part of the trailer weighs under three tonnes, then I may be talking out of my arse 
AaronR:
Hi chaps, after an answer on something.Can anyone tell me what max weight you can put on the front and rear of a 4 axle dennison splitter trailer? I.e if the rear was dropped, what max weight would be allowed on the front section, in terms of not overloading the rear axles on a 6x2 unit, and the single axle on that section. dennisons website states the front can run UP to 24 tonnes but I’m unsure If this is correct?
Hope that makes sense
AaronR
I wouldn’t think you can go over 8.5 tonnes on the trailer axle. I thought the idea was really to put two boxes on the bay at once
Taken from the maritime transport trailer weight matrix. Given to me when I started by the driver trainer.
Front container must not exceed 13t gross.
Rear container must not exceed 18t gross.
Total trailer weight must not exceed 29t gross.
Rear container must not be more than 10t greater than he front.
Hope that helps
Just thinking more about this, can you actually use them on the public road when they are split? Do they test each piece separately and does each piece have a plating certificate?
Tested as one piece malc. the only time you could run foul of the law was when the old 3x3 tax was available. as you would technically well actually 
be running 3x2 if split for a 2nd delivery.
Every one I have seen has 2 plates and discs
OVLOV JAY:
Every one I have seen has 2 plates and discs
thanks, that what I was thinking, but it is interesting to note on Dennisons website, it says “For off road use only”
r slicker:
Tested as one piece malc. the only time you could run foul of the law was when the old 3x3 tax was available. as you would technically well actually
Actualy and technically you wouldnt be running 3x2 if split cos theres only one bleeding axle on the front section and three on the rear
Wheel Nut:
OVLOV JAY:
Every one I have seen has 2 plates and discsthanks, that what I was thinking, but it is interesting to note on Dennisons website, it says “For off road use only”
That’s the idea of them, but it’s not uncommon to drop the back half at a personal effects in west London, then run the front half to oxford and back 
Iirc they are classed as 2 trailers and are tested as 2. That’s why you have 2 plates and 2 discs . Think with the Dennison type you can also tow the rear half as it has a fifth wheel coupling, some of the other types don’t so you can only drop that bit off at a customers while you take the front half to another drop.
Yes that’s right. The dennison has a fifth wheel on the rear, but the dtec and nooteboom have an internal eyelet and pin, a bit like a draw bar to look at
OVLOV JAY:
Taken from the maritime transport trailer weight matrix. Given to me when I started by the driver trainer.
Front container must not exceed 13t gross.
Rear container must not exceed 18t gross.
Total trailer weight must not exceed 29t gross.
Rear container must not be more than 10t greater than he front.
Hope that helps
What about if you didn’t have a box on the rear, or if the box on the rear was only say 3t gross, what gross could go on the front half? Why has maritime stated the figure of 13t on front? Surely I you has dropped the rear half, you could take more that 13t spread over 4 axles (1 on trl, 3 on unit)?
Cheers
All down to the weight distribution. Don’t forget that’s a lift axle on the front half. They are prone to splitting air bags with anything heavier. Not to sure what that axle is plated for. And you’re 3t rear box will be fine, as you can’t go over 13t on the front