Curiosity question about I-Beam trailers
Submitted by till on Sun, 2012-08-19 09:06
Hi,
mostly just a nosy question, but can someone on FW with one of these I-beam trailers measure me a couple of sections please?
What do they use for the main arms, the cross-braces and the drawbar? Just mm accuracy will do.
TC mention on their website that it is exclusive and it just bugs me - how do you get an exclusive section?
TIA,
till
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pgreen1
Posts: 395
Date Joined: 20/02/08
Mines an ally I beam section
Mines an ally I beam section would you like measurements on that?
till
Posts: 9358
Date Joined: 21/02/08
Ta for the offer, but just
Ta for the offer, but just chasing the section sizes on the steel ones ATM.
Must see that toy of yours sometime, the new electronics look very hot!
Rob H
Posts: 5786
Date Joined: 18/01/12
Till I have a TC Ibeam
Till I have a TC Ibeam trailer but Im unfortunately at sea now.
But Trailcraft havent made trailers for quite a while and last time I tried to get bits they told me John Papas had been making them under licence or however it works.
The sections not exclusive but bending it cleanly is a bit of an art I believe.
But if you are going to copy one its hard to beat, they are an excellent trailer, just for the corrosion side if nothing else.
Give a man a mask, and he'll show you his true face...
The older you get the more you realize that no one has a f++king clue what they're doing.
Everyone's just winging it.
till
Posts: 9358
Date Joined: 21/02/08
Ta, when you're back is
Ta, when you're back is fine.
The smallest universal beam in my onesteel catalog is 150, or 100 as a UC and I just can't see people building trailers with a section that is 14kg/m.
The duragal channels look pretty promising, they're 450mpa steel instead of the usual 300mpa that the UBs are IIRC.
thesupervisor
Posts: 1136
Date Joined: 10/06/09
I have used a75uc before to
I have used a75uc before to make awnings
and im sure ive seen it in 50 aswell
getting the bottom line final answer from a bunch of blokes that use false names and put smiley faces at the end of paragraphs is not the best place in the world to get the information you seek.
till
Posts: 9358
Date Joined: 21/02/08
Yeah, saw a little section
Yeah, saw a little section like used at Pete D's place for as slide for a block and tackle, just not in my catalogs for some reason.
mrwinta
Posts: 457
Date Joined: 14/01/10
Tezza's Trailers
Jayme if you ring Terry in Port Kenedy (Helmshore Way), He used to run the trailer making side of things for Trail Craft... I have one of their I beam trailers and he knew all about it when I took it there a few weeks ago for parts... I don't have his number with me as I am off shore but I can get it in a week when I get home if you like...
NEVER PUSH YOUR GRANNY WHEN SHE'S SHAVING
Rob H
Posts: 5786
Date Joined: 18/01/12
If i was going to guess Till
If i was going to guess Till itd be 100x50 and Definitely isnt duragal. It is ub or uc and about 5mm. Very solid. But i believe ub has less torsional rigidity than RHS.
Give a man a mask, and he'll show you his true face...
The older you get the more you realize that no one has a f++king clue what they're doing.
Everyone's just winging it.
till
Posts: 9358
Date Joined: 21/02/08
I found a Singaporean
I found a Singaporean steelmaker's catalog that has a 100x50 UB and compared to 100x50 RHS, its only 10% stiffer around the x-axis, but only 25% of the stiffness around the y-axis.
Buggered if I can find either a tezza or terry trailers in Port Kennedy!
Rob H
Posts: 5786
Date Joined: 18/01/12
But on the other hand, the
But on the other hand, the allowance for wastage (corrosion) can be much less
1/ cos you can see it
2/ cos you can treat it!
Give a man a mask, and he'll show you his true face...
The older you get the more you realize that no one has a f++king clue what they're doing.
Everyone's just winging it.
till
Posts: 9358
Date Joined: 21/02/08
True, but as usual, so many
True, but as usual, so many ways to skin the cat!
With RHS, you can also just oil/diesel fill the tubs, or fit a trailer wash. I was just going to try and cost the steel for one against the other.
sea-kem
Posts: 14933
Date Joined: 30/11/09
Hey Till you can still get
Hey Till you can still get TFB as well which might help. Not sure about ali but know they still do it in mild steel.
Love the West!
till
Posts: 9358
Date Joined: 21/02/08
Yeah, just they are even
Yeah, just they are even worse again for flex in the other direction.
grantarctic1
Posts: 2546
Date Joined: 03/03/11
Here is mine
Here is my trailer with the bot off .
It is aprox 6.8 m long. 2.4m aver all . The channel section that bolts to the wheel A frame is 1.1m wide .
The parallel Flange is 100mm x 50mm x 7mm thick.
Hope this helps Jamie , if not drop in and have a look .
Cheers Grant .
till
Posts: 9358
Date Joined: 21/02/08
Interesting, with the 100PFC,
Interesting, with the 100PFC, and plenty of crossbracing, that one looks fine too.
Any mech eng here? I am curious as to what safety factors they have to rate trailers too, and what the design load modifiers are.
kmo
Posts: 127
Date Joined: 17/01/12
From Infrastructure.gov.au
http://www.infrastructure.gov.au/roads/vehicle_regulation/bulletin/vsb1/vsb_01_b.aspx#23
It is suggested as a minimum that the Manufacturer should be able to demonstrate that the structure is capable of supporting the designed payload with a safety factor of at least 3 for highway use and a safety factor of 5 for off road use.
Not an exact science looking at that. Given the potential for weight and centre of gravity variation I'm not suprised.
WRT to the exclusive section this isn't that unusual really. Austal had a number of ali extrusion profiles which they had designed themselves to suit their needs which were manufactured by onesteel exclusively for Austal. Obviously TC have determined an optimum size and figured it was worth the cost of any tooling etc required to get the long term savings.
till
Posts: 9358
Date Joined: 21/02/08
That looks pretty
That looks pretty straightforward as you say.
Yes, I'm sure that either Austal, or TC could put a pretty decent argument in for supply with onesteel, but certainly it would be an order of that magnitude for a custom section.