New trailer needed for 2400 kevlacat

[soulfish]

Very jealous of the trailer, but just a quick thought
Have stainless handrail at home exposed to gum trees etc and needs a scrub regularly ( stainLESS not FREE ) Advice from the manufacturer is to always use a non metal scourer to brush, the tiny iron filings left from a steelo pad will cause corrosion due to different metal.
They gave me some green scourer that matches 600 grit finish on the railing.
You then rub a very light oil over it which extends the clean look. Not sure what kind of oil it is as they gave me a sample, but dont think it is critical
Cheers
Brendan

Thanks Brendon didn't think of that,but I have done it a few times now with no signs of rust but I get your point...I have used the green scourers as well & they work just as good.So will just stick with them in future.

[scottar]

Just stop being lazy Jason. Get out there with the Autosol and a nice soft cloth so you get it nice and shiny. Maybe even give it a buff. LOL

[ShaneC]

As Jason said, the staino trailer would be the lightest by a long shot, it would be interesting to find out the cost if the materials if you could get it. I know the 1060 kg alloy trailer well, I had a fair bit to do with building it and paid for it. Don't categorically write off alloy for staino though, I could've built mine significantly lighter but I was building for strength over weight and used very heavy running gear. If you source the staino, can you report back, I would like to compare the price over alloy for my next half finished project.

[soulfish]

As Jason said, the staino trailer would be the lightest by a long shot, it would be interesting to find out the cost if the materials if you could get it. I know the 1060 kg alloy trailer well, I had a fair bit to do with building it and paid for it. Don't categorically write off alloy for staino though, I could've built mine significantly lighter but I was building for strength over weight and used very heavy running gear. If you source the staino, can you report back, I would like to compare the price over alloy for my next half finished project.

Your always up to something mate...what a trailer for the crab/mackerel boat?

[ShaneC]

Yessir, one that'll go good up the beach.

[Moejoes]

Hi Gav,
Some info below for you to look at for weights of different metal sections per meter.
Bear in mind that your wheels, axles, hub & bearings won't change.
The only differences will be in the frame you build to mount on the under carriage to.
Also you need to consider if you decide aluminium, your wall thickness of the RHS will increase from 3mm to say 6mm.
You will loose half the strength of the aluminium at the welds due to the heat which will be subject to cracking & fatigue, so you will need to weld gusset / stiffener plates everywhere to strengthen ( aluminium does not like vibration ).
Where as with steel or stainless steel you should be able to just cut / butt & weld.
You will find that after doing the calc's on aluminium you will see it is just as heavy & more work to build.
I know this because I went through the same thing & after talking to my engineer we decided that the steel galvanised one was twice as strong as the aluminium & would be the same weight or slightly lighter.
My galvanised steel trailer engineered to 4.5ton came in at 900kg's when I ran it over the weigh bridge.
I never looked at the stainless option but probably should have
Go for the stainless option if you can afford it.
Obviously you will still have the same problems as everyone else with bearing / brake maintenance.

	Section:	kg/mtr
SS	150x75x5	16.3	RHS
	100x50x3	6.95	RHS
Alum	152.4x63.5x6.35 6500	5.27	Channel
	100x 50x6x9 6500	3.894	Channel
	100x50x3.0 (6060-5) 6500	2.279	RHS
	152x76x6 (6082-6) 6500	7.57	RHS
Steel	100x50x3	6.6	RHS	Add approx. 10% for galvanising
	152x76x5	16.4	RHS	Add approx. 10% for galvanising

Hope this helps - Good luck

[hookinin]

Rob,
Thanks for going to the trouble of doing that it did make it very easy to compare and its been great to talk to you guy that tow your heavy boats all over the place since we only travel short distances.
Cheers Gav

[hilta1]

Did anyone source the Stainless??? or who make the ones for Noosacat, are they made in house? will Noosacat make them to suit a KevlaCat??? Cheers and merry xmas

[hookinin]

Noosa cat wouldn't make one to suit Kevlacat but we are having a ally frame and stainless carrier, discs, calipars etc built at the moment. I can take a few pics when its finished if you like.


Gav

[hilta1]

That would be good if you could take some pics mate, thank you, cheers Mark

[Bremic]

Noosa cat wouldn't make one to suit Kevlacat but we are having a ally frame and stainless carrier, discs, calipars etc built at the moment. I can take a few pics when its finished if you like.


Gav

When you say frame and carrier, is the carrier the bit that holds and positions the boat on the trailer? Is there much risk of the stainless causing corrosion to the alloy frame.

[hookinin]

The trailer is all alloy frame and the stainless carrier is the part the suspension is attached too which is often with galvanised steel. it will also have stainless callipers and discs.

[hookinin]

Just a few picks of the end result

[ozynorts]

Nice but there's something missing mate.......

[scottar]

Nice but there's something missing mate.......

He was wondering why it seemed so easy to tow!!!!!!