Front end loader B5100E

[LazyGator]

Hello all, I am looking for advise on making a front end loader for my kubota b5100e, I know how to weld but I have no idea about what material to use or how to design it. I have ideas of how to design using a mix matched of other peoples designs and reading about what they would change. Currently the price of steel is cheap and I will be able to hopefully afford what I need. I can upload my drawings and get some opinions on what to change. As far as mounting and Materials I'm not sure its not like it will be lifting much but it needs to be strong. I was thinking 2x2 square tubing for the uprights with 1/4 pieces to attach to the stress points after that I am completely lost. Any help would be highly appreciated.

 

[PILOON]

Probably the best action would be to visit a dealer's yard, walk around and take pictures of various designs.
As to steel used I believe most is regular mild steel except for cutting edges, pins and hydraulic rods.

 

[LazyGator]

I think I have the design down, next is to figure out my mounting points, looking at the tractor there痴 not many and I want to keep the stress as even and wide spread as possible. If I can figure out how to upload pictures I will do that

 

[ptsg]

I made a loader of a Kubota B7000 a long time ago.

Bought some cylinders on the scrapyard. Two of them were from lifting the cab of a truck, the other one I can't remember.

I had a long piece of 60x60x5 mm square tubing that was enough for the entire loader plus subframe.

At the time, I didn't have a lathe, so I couldn't modify the cylinders to my taste but it still ended up alright.

The subframe is key and you want to spread as much forces as possible from the front to the back. These tractors are not really meant for loaders. The front axle won't take much abuse from lifting heavy stuff and the aluminium transmission housing won't help much either.

Add some diagonals from the loader towers to the front of the tractor. It will help a lot. I mounted a separate pump under the exhaust, driven of the crankshaft via a V-belt. One of the towers was the hydraulic tank.

One mistake I made was that I had not enough curl with the loader close to ground. I had plenty of dump, even at max height.

Mine was limited around 450 lbs of lift capacity and was plenty for that size of tractor. Once you mount the loader one, it will be very tippy and light in the back, just be aware of that. I fully recommend either get wheel weights for the back or fill the tires and still run an implement or some sort of counter weight in the 3pt.

Here is some random pictures. Hopefully it helps you some.

 

[LazyGator]

Thank you, I love the design with the sub frame, I think I will change my sub frame design. The way I have it drawn out it sits under the tractor and has 12 bolts to hold it on, with that design the more bolts the better. How do you calculate the size cylinder needed?