information on a Rhino 8' 850 3 point hitch scraper blade hydraulic cylinder

[CADplans]

A large size cylinder (3.5" bore, or larger) is preferable, so that the cylinder will move slowly as it takes more oil to fill it.
A smaller cylinder reacts to quickly to the oil flow, you can not get the blade to the position you desire.

So, the biggest cylinder bore that does not cause interference, is the best size.

 

[sleepydeere]

thanks very much for the info Coby

 

[sleepydeere]

Hi thanks every one for all the info Mark

 

[LD1]

Late to the thread but here is my :2cents:

Pin size is irrelevant. It needs to be the diameter to match where it is going to hook on YOUR blade (unless there are no mounts and you plan on fabbing).
As to pin length....also irrelevant as it needs to be sized to whatever type of clevises you cylinder has.

For a tie-rod cylinder....I believe bore diameter is also the same as tie-rod center to center. So thats an easy way for someone else to measure theirs without dis-assembly.

As to bore size. Again, bigger is better. Some people already mentioned some reasons, like being able to angle when loaded, and moving slower.....but the single biggest reason is so you dont blow the hydraulic hoses.

Think about how a bottle jack works.....you have a lever and you are pumping a little piston to move oil and build pressure.

Your blade with a cylinder is the same thing. your 8' blade is the lever....and the cylinder is the little piston trying to pump oil. Only most remote valves that control it dont have a relief when the valve is closed and you arent actively moving/angling the blade. So if you snag something with enough force, there is a pressure spike created in the cylinder/hoses and you make take an oil bath.

Smaller cylinders translate the force of snagging something into much more PSI because there is alot less surface area (on the piston) to distribute the load out on.