Cyl. force

[Hooked_on_HP]

How much force will a 3"dia. cly. apply with 2200 psi going into it.
Bill

 

[kennyd]

Here are some calculators that will help:

Baum Hydraulics

 

[dfkrug]

Bill, the SurpCntr has online calculators that work very well. Push and
pull forces will be considerably different, depending on rod size.

http://www.surpluscenter.com/techhelp.asp?UID=2252011013263306&catname=hydraulic

 

[Hooked_on_HP]

Thanks Kenny that helps a lot
Bill

 

[AKKAMAAN]

How much force will a 3"dia. cly. apply with 2200 psi going into it.
Bill

Here you go...I put in some other numbers too, hope they fit....7.775 tons

 

[Hooked_on_HP]

I am building a dump trailer. The cyl. will be pushing up at a 10deg. angle at the start of the lift. With a 3" cyl. and 2200psi will I only be able to lift 2700 lbs.
Bill

 

[J_J]

Go to Surplus Hydraulics, and select tech help, select calculators, select force and speed. and use the the calculations on the right side, which has a place for angle.

Max force is at 90 degrees. Maybe you want to use 80 degrees instead of 10.

0 degrees and 180 degrees, have 0 force, any other degree will have some force and build up to the max at 90 degrees. I believe this is correct.

Draw us a diagram of your cyl to lift point.

 

[Hooked_on_HP]

Why would I want to use 80deg instead of 10. The cyl. is 10deg up from horizontal.

 

[Leejohn]

Everything looks great, like i knew it would. May I just say something to give you more to think about. If your like me I should said, sleep on.
I would put kickers between the two beams on each side of the cyl. far enough apart to give you room to pull the pin. And one in the center on the last set of beams.

 

[AKKAMAAN]

Why would I want to use 80deg instead of 10. The cyl. is 10deg up from horizontal.

Get a telescopic cylinder with trunnion mount, that will give much better geometry and lifting force from start of lifting cycle, short retracted with a long stroke....
see Prince catalog pdf

 

[kennyd]

Get a telescopic cylinder with trunnion mount, that will give much better geometry and lifting force from start of lifting cycle, short retracted with a long stroke....
see Prince catalog pdf

I doubt that's in the budget!

 

[Hooked_on_HP]

Get a telescopic cylinder with trunnion mount, that will give much better geometry and lifting force from start of lifting cycle, short retracted with a long stroke....
see Prince catalog pdf

You dont have one of these lying arround you would like to donate to the cause do you. I think I have to have a double acting cyl.to work with the hyd. on the tractor.
Bill

 

[CurlyDave]

Calculate torque around the pivot point, not force.

If you just calculate force you may be embarrassed at the county dump with a trailer full of something you don't really want to bring home.

 

[J_J]

Why would I want to use 80deg instead of 10. The cyl. is 10deg up from horizontal.

Here is another dump setup being worked on by rdbrumfield

 

[rdbrumfield]

I understand your problem with the 10 degree starting angle. Can you lower the front of the ram a bit? With only a 3 inch ram it isn't going to lift much very high. If you move it forward to lighten the ram load it won't pick as high. Tradeoffs are a bummer.

Lowering the ram on the subframe will give you better angle for lift and still keep the same height pretty much full extended.