Unusual 8 wheeler

I don’t know what make it was as I was nearly passed when I noticed the axle configuration, steering axle at the front, then a triaxle rear. So it was like a 6 wheeler but instead of a double bogey at the back it had a triple bogey making it an 8 wheeler. Not sure if it was a tipper or a blower.

So what is the purpose of this, is it something new ?

Some bin trucks are like that over here, an 8 legger with front steer, rear (front) lift and double drive. Probably with a compactor body most of the weight ends up centre/rear as it gets to capacity…

They are big in the States.

AndrewG:
Some bin trucks are like that over here, an 8 legger with front steer, rear (front) lift and double drive. Probably with a compactor body most of the weight ends up centre/rear as it gets to capacity…

I’ve seen dustcart versions in Somerset on M5

Bluey Circles:
I don’t know what make it was as I was nearly passed when I noticed the axle configuration, steering axle at the front, then a triaxle rear. So it was like a 6 wheeler but instead of a double bogey at the back it had a triple bogey making it an 8 wheeler. Not sure if it was a tipper or a blower.

So what is the purpose of this, is it something new ?

I’d assume the locality of a second axle near the front on a traditional 8 wheeler, was initially more about convenient for connecting when also steering, but as things are more ‘fly by wire’ and computer controlled, I guess they can experiment more on how they take the load…

Feed bulkers and milk collection vehicles with the body / tank far enough to the back.
Many are not double drive and have the rear axle steered.
In the correct set up, very manoeuvrable, and still 32 ton.
The ones with the low cab configuration have the engine and body far enough back to make sense, and very difficult to put a double steer at the back.

The Dutch build 5 axle rigid for 49 ton.

IMG_0184.JPG

Tri dems lots of mixers about round here now

HOPE MIXER.jpg

yeh concrete mixers when u think about so obvious choice de to weight all at rear, however the transport company at village glass in essex has just got a beauty flat bed merc with a moffat on in that set up ,witham transport i think

really need to take photos so many cha nges in construction trucks

Tossmac have a few now.

Pete.

Tridem set up’s are becoming more popular, same turning circle as a 6x4, but with the weigh capacity of a 8x4.

Volvo seem to be taking the lead in them, seen
8x4, with steering first and second axle with the latter being in front of a double drive bogie.

8x4, with steering first and forth axle.

And an 8x2 where first, second and forth axles are steering.

Wouldnt be at all surprised if the chinese six doesnt make a re appearance…

SH100998.JPG25T tare and we load 50t.

Plenty of axles here:

AndrewG:
Wouldnt be at all surprised if the chinese six doesnt make a re appearance…

Not a bad idea if on heavy type of multi drop …

hutpik:
025T tare and we load 50t.

Impressive - big toys for big boys :smiley:

I take it that is a rear steer, with twin wheels? most steering axles that I ave seen only have single wheels.

Saw a Tarmac tri axle in a local garage 2 weeks ago. Had to do a double take as I couldnt quite work out what the hell was wrong with the thing.
Talking to the driver he says the steering lock is miles better than the standard 8 one of the axles is able to lift when empty so saving wear on tyres.

raymundo:

AndrewG:
Wouldnt be at all surprised if the chinese six doesnt make a re appearance…

Not a bad idea if on heavy type of multi drop …

With diminishing loads on a 6 wheeler they’d be ideal especially in the UK. Bedford used to do this on their coach chassis a long while back

AndrewG:

raymundo:

AndrewG:
Wouldnt be at all surprised if the chinese six doesnt make a re appearance…

Not a bad idea if on heavy type of multi drop …

With diminishing loads on a 6 wheeler they’d be ideal especially in the UK. Bedford used to do this on their coach chassis a long while back

The big disadvantage of a Chinese 6 is that it turn like an eight wheeler and only carry weight like a 6 wheeler.
For distribution you would struggle with a lot of factory estates, and while weight distribution would be great, you couldn’t deliver to housing estates, old factories etc.
The old AEC 6 wheelers needed an airfield to turn.
Even modern ones the steering lock wouldn’t be good enough.

Ideal you would have a moving headboard, pushing the load back over the rear, but the weight penalty would be massive.