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Advice - Building flat bed trailer - w/ 9" wheels?

Posted: Wed Jun 03, 2009 4:45 pm
by me3@neuralfibre.com
I need to build a trailer and am not satisfied with what I can buy.

It needs to be 8" x 5" flat tray, drop sides, preferably with some tipping, 1 ton payload, single axle, low profile, removeable ladder racks, and like everything I do - minimum weight. Heavy duty is not required. It will be stored hanging from the garage roof - so profile matters. Hence drop sides etc.

I was thinking of finding a good alloy tray from a ute that was the right size, then putting it over a basic C section or RHS frame. Hinge the drawbar for tipping.

Speaking to the trailer joint, they do a 9" wheel w/ light truck tyres, and braked axle that can do up to 2 ton! They are supposed to be heavier duty than the 10" wheel, and the 10" wheel can't be braked.
They are expensive though - about $1100 for springs, hangers, axle, brakes, hubs, wheels, tyres.

Has anyone tried something like this and would you have any pics?

Thanx
Paul

Posted: Wed Jun 03, 2009 5:20 pm
by pongo
they might be rated to 2t but can the tyres handle the heat in summer without blowing

Posted: Wed Jun 03, 2009 5:30 pm
by want33s
With a 9" tyre your tray will be very low.. It won't tip much at all unless you raise the tray quite a lot.

Posted: Wed Jun 03, 2009 9:22 pm
by mike_nofx
9" wheel... diameter or width?????

Posted: Wed Jun 03, 2009 9:58 pm
by me3@neuralfibre.com
mike_nofx wrote:9" wheel... diameter or width?????
9" rim diameter - fully highway rated - LT 8 ply. Not sure of load rating - 800-1000kg ea.

Paul

Posted: Thu Jun 04, 2009 3:58 pm
by tweak'e
9" rims ???

i remember some vans used to come out with 12" i think it was and they have dual rears to handle the sub 1 ton load. also the tires where very expencive.
9" would be quad bike tires.
not sure what brakes you would even fit in that.

how low do you really need it. this is a pic of our tandem using 13" low profile tires.

Image

that can go probably 4" lower if we pushed it.
the problem we have is the brakes over power the tires. about to do fit brakes on the 2nd axle because one set of tires can't handle it.
9" low profile tires is going to have so little traction its probably going to be dangerous.

i think you better find some more info about these rims and tires. i would be wondering how many places would be able to get replacement tires.

edit: look like you can get 7" brake drums for those small wheels. not sure exactly what weight they can handle. 1 ton gross is going to be pushing it.

Posted: Fri Jun 05, 2009 9:11 am
by Hekta
tweak'e wrote:9" rims ???
Mini wheels ?

Posted: Fri Jun 05, 2009 9:31 am
by chimpboy

Posted: Fri Jun 05, 2009 10:30 am
by tweak'e
Hekta wrote:
tweak'e wrote:9" rims ???
Mini wheels ?
come to think of it , those wheels you see on those small pop top caravans. however i think they are only rated for 500kg per axle tho i don't recall seeing low profile vers.


that fold up trialer is very neat idea.

Posted: Fri Jun 05, 2009 6:42 pm
by me3@neuralfibre.com
chimpboy wrote:Have you seen these?

http://cgi.ebay.com.au/Folding-Multifun ... 0337785001

Image

Image
Oh yeah, seen the brochure - love em.
Light, C section.

I went to 3 trailer shops today - if I hear another idiot sales man tell me "Heavy Duty" I'll go nuts.
I want freakin Light Duty.

"Yeah, it'll handle 1300kg now worries, but without brakes it's only 750, with 530 payload"
For chrissakes, in that case, build it to only take 750.
"We don't make light junk here" was the response to light duty requests.
They overbuild to allow for corrosion protection, rather than building it not to corrode.

One mob had more of a clue, I think I'll go back to them.

Most said "well yes, 9" and 10" are highway rated, and load rated correctly, but we don't build things that way...."
Rated is rated in my book. I trust the manufacturer more than I trust Joe Corner Store Trailer Parts.

Look like an alloy ute tray with dropsides will be the way to go. Might cut wheel arches into the tray.

Paul

Posted: Fri Jun 05, 2009 7:51 pm
by tweak'e
whats the overall diameter of those wheels?

if your going to cut wheel arches into it why not just get a ute well side and weld axles etc to it ?

Posted: Sat Jun 06, 2009 4:46 pm
by mickbeny
Hi all...I built a single axle 2 ton box trailer.Axles hubs brakes all come from AL-CO,They have a website.I dont know anything about 9 or 10 inch tyres,But what i do know is if you want your trailer to be a 2 ton trailer,You have to have tyres rated to at least 1000kg each.