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Build it yourself trailers - companies selling kits?



 
 
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  #1  
Old May 23rd 05, 10:30 AM
[email protected]
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Default Build it yourself trailers - companies selling kits?

I've tried Google/Froogle searches but didn't come up with much, are
there any companies selling kits for build-it-yourself trailers? I
want a simple trailer that I can use in the garden (7 acres of it)
and for transporting stuff on the road (i.e. it has to be road legal).

My ideal would be one that can carry 8'x4' sheet material. It doesn't
have to have solid sides or bottom, the type made of mesh would be
fine.

Any ideas anyone?

--
Chris Green - at home
Ads
  #2  
Old May 23rd 05, 11:10 AM
Mary Fisher
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Default


wrote in message ...
I've tried Google/Froogle searches but didn't come up with much, are
there any companies selling kits for build-it-yourself trailers? I
want a simple trailer that I can use in the garden (7 acres of it)
and for transporting stuff on the road (i.e. it has to be road legal).

My ideal would be one that can carry 8'x4' sheet material. It doesn't
have to have solid sides or bottom, the type made of mesh would be
fine.

Any ideas anyone?

--
Chris Green - at home


There's a place in Leeds which sells components (rather than kits) but I
guess that's a bit far for you?

Mary


  #3  
Old May 23rd 05, 11:25 AM
Christian McArdle
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Default

My ideal would be one that can carry 8'x4' sheet material. It doesn't
have to have solid sides or bottom, the type made of mesh would be
fine.


All the mechanical bits are available easily.

They seem to be cheapest on

www.trailerpartswarehouse.co.uk.

You will to decide on your weight capacity and number of axles. If you're
taking 8'x4' sheets, you will probably want brakes. Not only are they
required for 750kg (which is quickly reached transporting rubble or
plasterboard), but they are very useful for ground handling. If your car
isn't huge, you might even need brakes below 750kg.

Twin axle is nice. They make it more stable to drive and more stable to
load. However, it will increase costs as you have twice as much of most of
the mechicanal components, although for the same trailer rating, lower rated
(i.e. cheaper) components can be used as the load is shared.

So, if you're going for a single axle braked, I'd get something like:

BB1300 1300kg braked suspension unit * 2 = 217.04
SW385J6 185x13 6ply 4x5.5"pcd * 2 = 193.64
PH15 Peak Coupling 1500kg A/R 43mm J/W = 116.01
Total = 526.69 (rated up to 1300kg, upgradable to 1500kg cheaply if
required)

For twin axle, I'd get
BB750 750kg braked suspension unit * 4 = 412.84
SW150C6 500x10 6ply 4x4" pcd = 146.64
PH15 Peak Coupling 1500kg A/R 43mm J/W = 116.01
Total = 675.49 (rated up to 1500kg)
This could cheaply be upgraded to much higher ratings if required.

Single axle unbraked is much cheaper:
TG750 750kg short stub suspension unit * 2 = 57.88
HG505S hub 4x4" pcd 1" dia stub *2 = 30.50
SW150C6 500X10 6ply 4x4" pcd = 73.32
BA254 Al-Ko 50mm coupling 50mm box = 15.05
Total = 175.75 (rated to 750kg)
This ratng can't be increased. There will be no handbrake or vehicle service
braking.

If buying any of these components, check with the supplier that they are
indeed compatible.

The braked versions will also require a number of sundries, such as brake
balance plates, etc. These are not expensive.

Then you just need some angle iron and a welder. I'm sure you can find some
designs with a little searching. You can fit the sides and floor with
plywood or mesh as you see fit. Make sure it is strong enough for your
chosen rating.

The suspension units just bolt onto the chassis near the middle. Ensure that
empty, it weighs down on the coupling. Don't forget the electrics, which are
simple as anything.

Christian.


  #5  
Old May 23rd 05, 02:23 PM
Autolycus
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Default


wrote in message
...
I've tried Google/Froogle searches but didn't come up with much, are
there any companies selling kits for build-it-yourself trailers? I
want a simple trailer that I can use in the garden (7 acres of it)
and for transporting stuff on the road (i.e. it has to be road legal).

My ideal would be one that can carry 8'x4' sheet material. It doesn't
have to have solid sides or bottom, the type made of mesh would be
fine.

Any ideas anyone?

Indespension used to do (and may still sell) a "trailer manual" which
included sketch designs and parts list, as well as much useful stuff on
trailers and towing in general. I've always found them expensive for
parts, and the service at my local branch is, shall we say, not always
the most helpful. Abbey Trailers, in Derby, otoh, are extraordinarily
pleasant to deal with. Dunno about a website, mind, I don't think
they've had the electric all that long.

Rubber-in-compression suspension units (Indespension, Avonride, Bradley,
many others) are, to me, appallingly crude pieces of engineering, but
people still buy them. Once they start failing the wheel alignment goes
to pot and they wear tyres out very quickly. Ifor Williams used to use
multi-leaf springs, and now use parabolics, but such axles and
suspension are harder to buy and to design round.

If you decide to buy secondhand, wheel bearings have a hard life, and
often seem minimally-specified. Taper rollers are usually wrongly
adjusted, inadequately maintained, and can fail spectacularly and
rapidly. Brake parts are ludicrously expensive, even simple bits like
shoes. If a trailer has been neglected (most have), the hitch can be
badly worn, both the coupling head and the shaft. Even folk who will
sanctimoniously preach "only the finest" with car tyres seem to fit any
old tyres to trailers, regardless of load rating or condition. Make
sure your chosen tyre size is sensibly available - Ifor Williams are
noted for using sizes like 145R10C 8ply and 185/60R12C, which you won't
find at your average tyre shop. The caravan accessories section of your
local free ads paper will probably have some unused wheels and high
load-rating tyres, but there are many combinations or rim width, offset,
and stud spacing.


--
Kevin Poole
**Use current month and year to reply (e.g. )***
Car Transport by Tiltbed Trailer - based near Derby


  #6  
Old May 23rd 05, 04:08 PM
Baz
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Posts: n/a
Default


wrote in message ...
I've tried Google/Froogle searches but didn't come up with much, are
there any companies selling kits for build-it-yourself trailers? I
want a simple trailer that I can use in the garden (7 acres of it)
and for transporting stuff on the road (i.e. it has to be road legal).

My ideal would be one that can carry 8'x4' sheet material. It doesn't
have to have solid sides or bottom, the type made of mesh would be
fine.

Any ideas anyone?

--
Chris Green - at home


http://www.indespension.co.uk/

http://www.towsure.com/

My 5 eggs.
Baz


  #7  
Old May 23rd 05, 04:09 PM
Rob Morley
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Posts: n/a
Default

In article , "Autolycus" nov2004
@mainbeam.co.uk says...
snip
Rubber-in-compression suspension units (Indespension, Avonride, Bradley,
many others) are, to me, appallingly crude pieces of engineering, but
people still buy them.


You could always use the back end of an old car ...
  #8  
Old May 23rd 05, 05:00 PM
Rick
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Posts: n/a
Default

On Mon, 23 May 2005 11:25:24 +0100, "Christian McArdle"
wrote:

My ideal would be one that can carry 8'x4' sheet material. It doesn't
have to have solid sides or bottom, the type made of mesh would be
fine.


All the mechanical bits are available easily.

They seem to be cheapest on

www.trailerpartswarehouse.co.uk.

You will to decide on your weight capacity and number of axles. If you're
taking 8'x4' sheets, you will probably want brakes. Not only are they
required for 750kg (which is quickly reached transporting rubble or
plasterboard), but they are very useful for ground handling. If your car
isn't huge, you might even need brakes below 750kg.

Twin axle is nice. They make it more stable to drive and more stable to
load. However, it will increase costs as you have twice as much of most of
the mechicanal components, although for the same trailer rating, lower rated
(i.e. cheaper) components can be used as the load is shared.

So, if you're going for a single axle braked, I'd get something like:

BB1300 1300kg braked suspension unit * 2 = 217.04
SW385J6 185x13 6ply 4x5.5"pcd * 2 = 193.64
PH15 Peak Coupling 1500kg A/R 43mm J/W = 116.01
Total = 526.69 (rated up to 1300kg, upgradable to 1500kg cheaply if
required)

For twin axle, I'd get
BB750 750kg braked suspension unit * 4 = 412.84
SW150C6 500x10 6ply 4x4" pcd = 146.64
PH15 Peak Coupling 1500kg A/R 43mm J/W = 116.01
Total = 675.49 (rated up to 1500kg)
This could cheaply be upgraded to much higher ratings if required.

Single axle unbraked is much cheaper:
TG750 750kg short stub suspension unit * 2 = 57.88
HG505S hub 4x4" pcd 1" dia stub *2 = 30.50
SW150C6 500X10 6ply 4x4" pcd = 73.32
BA254 Al-Ko 50mm coupling 50mm box = 15.05
Total = 175.75 (rated to 750kg)
This ratng can't be increased. There will be no handbrake or vehicle service
braking.

If buying any of these components, check with the supplier that they are
indeed compatible.

The braked versions will also require a number of sundries, such as brake
balance plates, etc. These are not expensive.

Then you just need some angle iron and a welder. I'm sure you can find some
designs with a little searching. You can fit the sides and floor with
plywood or mesh as you see fit. Make sure it is strong enough for your
chosen rating.

The suspension units just bolt onto the chassis near the middle. Ensure that
empty, it weighs down on the coupling. Don't forget the electrics, which are
simple as anything.

Christian.


Twin axle has many advantages, but if you intend man handeling the
thing, the extra tyres make it a real PITA to turn.

Rick

  #9  
Old May 23rd 05, 05:13 PM
Christian McArdle
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Posts: n/a
Default

Twin axle has many advantages, but if you intend man handeling the
thing, the extra tyres make it a real PITA to turn.


Odd. I much prefered manhandling the 3500kg MAM twin axle I hired than the
single axle 750kg braked trailer. It could be steered easily by pulling on
the hitch. The fact that all points in contact with the ground had pneumatic
tyres, made it easier to push than the single axle with the solid rubber
jockey wheel with loads of friction.

Note that this would not include pushing at their maximum weights, but
largely empty...

Christian.


  #10  
Old May 23rd 05, 06:07 PM
Roger R
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Posts: n/a
Default


"Christian McArdle" wrote in message
t...
You will to decide on your weight capacity and number of axles. If you're
taking 8'x4' sheets, you will probably want brakes. Not only are they
required for 750kg (which is quickly reached transporting rubble or
plasterboard), but they are very useful for ground handling. If your car
isn't huge, you might even need brakes below 750kg.


Your design will need to take account of the restriction implied by the weight
of the towing vehicle. IIRC the maximum weight of trailer and load must not
exceed the weight of the car. So the heavier you make the trailer -extra
wheels, brakes etc, the more you reduce the load that can be carried.

If you have a light car you may be better off with the lightest unbraked trailer
design you can get.

Roger


 




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