Search:

50mm axle will take over 2000kg,
45mm axle will take 1500kg with parallel brgs.

Easy to go lower with single axle.

Im getting 430-450mm deck height from 45mm slipper springs,
10mm flat bar added between axle pads
40mm axle,
front spring hanger mounted horizontal
similar diameter tyres OD- 615mm, Radius-...

Yes I could have kept it to myself, but maybe it might inspire you to form a plan and a budget, and build something that is future proof.We are lucky to have such freedom in homebuilt trailers that...

Im pretty gobsmacked by this thread, this is the reason why we wont be allowed to build our own nice trailers in a few very short years.Do you have a plan?

How much can the Pajero tow Unbraked?

In my state (where we pay twice anywhere else in the world), can Galv a frame for $600, that's 20% he cost of a boat trailer for a 5m 1350kg boat.

Couldn't build an ally OR steel trailer for...

People have been trying to build a better mousetrap (aka Boat trailer) and galv steel still wins every time.

Think of boat traiers as a consumable item.
A chain is a s strong s its weakest link,...

Been struggling with my Brothers big WIA 255 for 12 months and just cant fully come to terms with it on thin galv.
Even on its finer 'A' setting and running the wire feed flatout with huge 0.9mm...

Why not MIG steel instead?
And there is no such thing as flat cement, build on trestles.

Soundman is right

Updated plan Jan 2015.
Gives an overall idea what it looks like.
Shows 6 Lashing rings on the rear tyredown bar to tale the 1 bike/2 bike combination.
Also the front wheel chock is being built...

http://i19.servimg.com/u/f19/16/24/31/39/lashin10.jpg
Bozbuilt JS-LR-1 D type Lashing Rings 1500lb stamped, zinc plated, recessed, folding, draining, spring loaded.
$7.50 each.
Outside dimension-...

http://i39.servimg.com/u/f39/16/24/31/39/traile44.jpg
Welded some braces in front of the side boxes from the chassis up to some tie down points, capped with 25x3 gussets with M10 nuts for eyebolts....

Needed some special curved uprights where the drawbar box joins the front corners, so cut some pieces out of cattle rail and joined them to 20x20x2 SHS.

...

http://i39.servimg.com/u/f39/16/24/31/39/traile36.jpg



http://i39.servimg.com/u/f39/16/24/31/39/traile37.jpg
Installed grommets and ran migwire for a pull through down the drawbar and out thru...

Purchases-
cleaning vinegar $6
Nutserts (20) $13.60
Grommets (2) $3
Killrust Heavy duty metal Primer (500ml) $28.25
Killrust Epoxy Gloss enamel (1l) $39.95
Methylated spirits (1l) $4
Mineral...

http://i39.servimg.com/u/f39/16/24/31/39/img_0910.jpg
Purchased Small Tyredown, suits 95-150 rear tyre.
KYA RACING
Secondhand
Total- $70

http://i39.servimg.com/u/f39/16/24/31/39/traile34.jpg
Made a template for the front corners, marked and cut the front of the chassis rails
http://i39.servimg.com/u/f39/16/24/31/39/traile35.jpg...

http://i39.servimg.com/u/f39/16/24/31/39/traile32.jpg
M6 Nutserts into primed holes attach the Aluminium drawbar box and side boxes to the frame....

Everything we've built on the farm in the past 20 yrs and painted with Killrust HD Primer and Killrust Epoxy Gloss Enamel has not rusted. Everything else has rusted away in harsh conditions. Gate...

http://i39.servimg.com/u/f39/16/24/31/39/traile29.jpg
Nitto tape on the Jigsaw.
http://i39.servimg.com/u/f39/16/24/31/39/traile27.jpg
Scribe line and Masking tape to follow 0.5mm away, then file...

http://i39.servimg.com/u/f39/16/24/31/39/traile24.jpg
http://i39.servimg.com/u/f39/16/24/31/39/traile26.jpg
Set up the side boxes on stands with two rivets, and clamped the mudguards on with 25mm...

Purchases from Bozbuilt Australind who are a leading motor body building and trailer parts supplier.
http://i39.servimg.com/u/f39/16/24/31/39/traile20.jpg
BZM-ALFM5 500mm Adjustable leg & BZM-LH1P...

http://i39.servimg.com/u/f39/16/24/31/39/traile12.jpg
40mm square 65" (1650mm tip to tip) axle weighs 18.8kg.
http://i39.servimg.com/u/f39/16/24/31/39/traile13.jpg
Cut some 10x40mm flat bar and...

http://i39.servimg.com/u/f39/16/24/31/39/traile17.jpg
Coupling plate tacked on, Trigg 50mm 2000kg coupling (De-burred and casting marks cleaned up) bolted with three 1/2" UNF grade 5 bolts washers...

I'll never be removing it, but in 100ys if I had to i'd cut the hanger off and plate over it, and its stronger welded near the edge of the RHS, you'll see when I post the pic of it tacked on. Nothing...

Are they Off road springs? Maybe go to slipper springs instead. and lay your chassis rails flat, since you are chasing low profile.

Check out my Track bike trailer build, Ive sunk the drawbar into the chassis right back to the front spring hangers (and further) its very rigid and makes for a low height.

You probably have it already, but the Martin's Catalogue is very handy and can be downloaded here- http://www.trailerparts.net.au/catalogue

This forum is about the best website on the net. Heavy material is not stronger than a well designed trailer. Start with drawing your plan.

Yes It will get Durahubs,
Fitter (by hobby now) enjoyable project building a much needed trailer that will see me out if done properly.
Researching trailers led to this forum, and gave the...

http://i58.servimg.com/u/f58/16/24/31/39/traile67.jpg
Purchased 2 sheets of aluminium treadplate.
2.0mm x 1200 x 2400 (17kg) for the sides , top of mudguards and front corners.
2.5mm x 1200 x 2400...

http://i58.servimg.com/u/f58/16/24/31/39/traile65.jpg
Made some 3mm thick slipper plates for the rear spring hangers that will allow the hangers to be welded to both the chassis and the plates....

http://i58.servimg.com/u/f58/16/24/31/39/traile61.jpg
Chasing the lowest ride height possible without going to a Drop/overlay axle, or Independent suspension.
So am laying the front spring hangers...

http://i58.servimg.com/u/f58/16/24/31/39/traile57.jpg
5/8"x1" grommets are fitted for the wiring to pass through the frame for the recessed Lights and concealed wiring before tacking the rear...

would you recommend just Anti-seze the bolt?

http://i58.servimg.com/u/f58/16/24/31/39/traile56.jpg
Side boxes arrived.
Mr Chinaman will always be a useless ****, but still better than I expected for the price.

http://i58.servimg.com/u/f58/16/24/31/39/traile54.jpg
Cut the trailer frame same method as the Drawbar was done with 1mm cutting disc on 4" grinder.
lowered the front stand and sat it all level....

http://i58.servimg.com/u/f58/16/24/31/39/traile50.jpg
Cut the rear of drawbar each side.
http://i58.servimg.com/u/f58/16/24/31/39/traile51.jpg
Set up a stand with the Drawbar level on top of the...

Back to the fun stuff.

http://i58.servimg.com/u/f58/16/24/31/39/traile46.jpg
Cut the two 75x50x2.5 drawbar pcs equal lengths,
clamped some box across the back at the width of inside shassis...

http://i58.servimg.com/u/f58/16/24/31/39/traile45.jpg
Purchased spare CO103 HQ STD Hub assy with Brgs, seal, cap and spare domed wheel nuts for Alloy rims.
Weighs 2.81kg.
Total- $44.58

http://i58.servimg.com/u/f58/16/24/31/39/dscf3310.jpg
Plan update with 100mm longer drawbar, Front drawbar toolbox repositioned, unsprung ride height drawn, 60 series tyres, 80mm mudguard clearance,...

Trailerparts C3702 mudguards are 230mm wide x 450mm top x 340mm front x 430mm rear x 800mm long.
This gives a 60 degree front angle,
made a template to double check which side boxes will suit....

I love the smell of new rubber in the morning,
especially TOYO tyres, still made in Japan, not China like 99% of the rest.
http://i58.servimg.com/u/f58/16/24/31/39/traile42.jpg
195/60-R15 88H...

Go to Martins Trailerparts Trailerparts Home and download the catalogue, its got all the info you need. And they are most helpful by phone with any questions.

The old ratings come from the days when rims were small and tyre profiles were huge, so work on the OD of tyre. As for your springs, always have them lighter than the axle as the axle does all the...

I trust my design, workmanship and build procedure 101% with this trailer, I tack in all the correct places, and never weld until the entire frame is complete with everything in the right position,...

http://i58.servimg.com/u/f58/16/24/31/39/tiger_10.jpg
Best not to handle freshly sandblasted surfaces so scraped any nicks and burrs with curved scalpel, removed leftover deposits with wooden...

http://i58.servimg.com/u/f58/16/24/31/39/traile36.jpg
http://i58.servimg.com/u/f58/16/24/31/39/traile37.jpg
Drilled plastic rivets slightly undersize and removed.
De-burred holes and filed any...

http://i58.servimg.com/u/f58/16/24/31/39/traile35.jpg
LED lights and reflectors turned up,
Total $206.80

http://i58.servimg.com/u/f58/16/24/31/39/traile32.jpg
Purchased Multi-fit Front wheel Chock $79.95
http://i58.servimg.com/u/f58/16/24/31/39/traile33.jpg
Assembled it with some extra washers and...