DUMP TRailer Building PLANS

[reedfish1954]

HEy Guys,

I need a picture of the hydraulic lift set up on dump trailer. I am making a small 4X 7 trailer with 24 inch sides. 16 inch wheels and a dump box. I figured a 3 inch ram would do it with 12volt hydraulic pump and resevoir would lift 2 yards of topsoil. I can make anything with welder and torch but i just need a close up picture of the cylinder and how it is placed. I don't need a picture of a scissors lift set-up. I am connecting the ram directly to the dump box and lower trailer frame. I see a ton on the internet but the pixes of the hydraulic arms are skimpy.

 

[wroughtn_harv]

Having made a dump trailer or two I suggest you pull a scissor unit off of an old dump truck. The geometry is all worked out for you and the scissor lift will raise the bed higher (important) with less effort.

As far as a power source Grainger has a couple of options for you. But if you have a source for used lift gates then that is a great source for the pump and motor.

If you're insisting upon building the whole thing yourself I suggest you keep a couple of things in mind. One is you want the bed to raise as high as possible if you're hauling anything like clay or wet dirt, just empties easier the closer it gets to vertical, funny that way.

Most of the lifts calculate their capacity and lift based upon the end section beyond the pivot. Don't do like a bud did with his dump truck I was using last week. The end section was too long and when the bed was lifted up it also raised the tires off the ground. That made it almost impossible to totally empty without a little manual--shovel--hoe--rake assist.

Pierce Winch has an internet site where they sell a complete unit ready to go quite reasonable if your time is worth anything at all.

Do watch where your load will be carried in relation to your tongue weight. One of the hardest things to work out with a dump trailer is having it towable empty and full.

 

[Hoeman00]

I'd go for the scissors hoist too.
I'm looking for a 10 -12' used dump bed then put it on frame
w/tongue and hook up pump.
This should be a fast and easy job.
I'm sending dad over to an auction Sat. to see if he can get
one at a good price.

 

[Anonymous Poster]

Having built half a dozen dump trailers, I've come to the following conclusions.
1, save a lot of weight and fabrication by tipping on the axel rather than building a sub frame and hinge.
2, Use a doghouse type lift to minimize lifting stress, it minimizes he amount of force necessary to frame against, especially on initial lift.
3, If building something to be hauled by a tractor, use the tractor's hydraulics.

 

[ealasimi]

Here are some photos of a small dump trailer I made for my tractor. Use it to haul wood and dirt. It is a home oil tank cut length wise with a lift off gate on back. Used rear axle off of a front wheel drive Caravan turned upside down to increase ground clearance. 15 inch wheels. The tank pivots on the axle for the dumping. The whole project cost me about thirty dollars. Most material is salvage. I did paint it after these were taken Kubota orange. of course.

 

[ealasimi]

photo dumping

 

[rdln]

LINE THE BOTTOM AND SIDES WITH THE CORRUGATED PLASTIC, It is slippery and load slides out at less of an angle.

hey when are we going doggie hunting?

I like that idea of rotating on the axle

 

[Anonymous Poster]

Re: Oil tank dump trailer

This one uses a winch to dump, has a removable tailgate that also swings open from the top, capacity just under 2 cuyds, and is easily towable with the wife's Ford 120 garden tractor.
I'm planning to do a retrofit with a vibrator to enhance dumping because she uses it for her garden debris.

 

[Makers_Mark]

Re: Oil tank dump trailer

Building a dump trailer myself. I ran into this site with great ideas. Check out the hydraulics!
Would anyone care to estimate the weight of horse manure? I'm trying to figure out how much I'll be lifting. I guess I could weigh a cubic foot and go from there.

 

[Anonymous Poster]

Re: Oil tank dump trailer

What site?

 

[Casimir]

Re: Oil tank dump trailer

<font color="blue"> "Would anyone care to estimate the weight of horse manure?" </font>

Depends on how wet it is. /forums/images/graemlins/smirk.gif In Nevada, when the stuff had time to dry out, I hauled trailer loads that didn't seem much heavier than feathers. However, if it was fresh, or when it rained or snowed on the load before I hauled it to the dump, my 5' X 12' X 16" dump trailer was heavily loaded - nearing the 7000 lb load capacity (including the weight of the trailer, of course). My dump trailer only had a hand winch from a boat trailer, so cranking it up to dump was only a little less work than forking it out by hand. /forums/images/graemlins/tongue.gif

 

[Hoeman00]

Re: Oil tank dump trailer

This comes from Deere website:

Topsoil 1600#/cu yd
Loam earth 2100#/cu yd
Dry earth packed 2550#/cu yd
Wet earth excavated 2700#/cu yd
Dry clay 2500#/cu yd
Wet clay 2800#cu yd
So depending on amount of straw or saw dust it could range
from 1000#/cu yd to 2700#+/ cu yd.

 

[Makers_Mark]

Re: Oil tank dump trailer

Thank you. That'll give me an idea.
Here's the website (sorry).
http://www.hhtrailer.com/

 

[t92]

Aonymous Poster
Since you have builded a few already. I have a question for you or some one may be giving me some idea.
I have been doing some research on how to build a dump trailer myself. I am looking to build a 5'x10' dump trailer with side and rear panel removable and have been price out most of the material but having trouble finding the two big hinges that will hold between the dump box to bottom frame. I went to look at couple of new trailers at dealer shop they look very heavy duty. I wonder if there 's company out there that prefab those part? or the trailer manufactory fabricate themself.
Thank you

 

[mwb]

AP hasn't posted since 2003 and his post count is at 0 (even though there is one post). I would hold my breath for a response!

If you do some more searching here there are recent threads about dump trailers. Try this thread http://www.tractorbynet.com/forums/build-yourself/184230-cable-operated-dump-trailer.html

 

[KWentling]

I got heavy hinges for my trailer ramps from McMaster Carr. I thing those were made out of 3/8" material. I've loaded a Cat Backhoe on it and not had a problem.

Kim

 

[Leejohn]

If I can remember I'll take a picture tomorrow of the hinges on the one I'm building. They are easy to make.

 

[workinprogress]

You may want to do a little checking into something like this.

https://www.surpluscenter.com/item.asp?item=343&catname=hydraulic

I think this would be over kill on your design but maybe someone makes something a little lighter.

 

[David Devuono]

Trust me after using this trailer for several years, every load required some manhandling to empty, you do not want a trailer like this. Note this trailer is jacked and the shot represents the dumping angle, yet because the trailer tail hits the ground you can never dump a load without driving forward, getting out the shovel and scraping the bed. You want a trailer hinged at the rear of the frame. If you consider every Front end loader like a mini dump trailer, you can get an idea what kind of cylinder angles are required. Also a sissor lift due to the large bore and short throw requires a HD subframe and will weigh as much as your 4x7 trailer. I am sure I just saw somewhere on this site someone who had made a sweet dumper using two long stroke hydraulic jacks (like on a engine lift) plumbed to a electric hydraulic pack.

 

[Leejohn]

Here are the hinge pictures. Pic 1,2,& 3 are the hinges. Outside parts are 1/2" stock and the center is 3/4". Doesn't have to be that wide, I done it because I'm not going to put any grease fitting in them.
Pic # 4 is the frame, waiting until I get a Cyl. and # 5 is what the tail gate well look like. It swings out or you can take it off.