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Why are the boom cylinders upside down on massive machines anyone know
farlinj 1 year ago
@farlinj Less lose of force transmission. All the energy to lift takes place in the cylinder, not the rod (shaft). By mounting it directly to the part being lifted, more force is applied to the part.
d11rcd 1 year ago
@d11rcd
Not really correct. The force applied is between the ends of the cylinder/rod unit, and it doesn't matter which way it's flipped, you still get the same force. Actually, by putting the cylinder on the work/upper side, you decrease load capacity by the weight of the cylinder and hydraulic fluid it contains.
The reason it's mounted like that is because the cylinders are so big it would take up space they need for other equipment. The rod ends are much slimmer. Better sightlines also.
ke6gwf 1 year ago
@ke6gwf i will have to disagree with you. your rod end will not have the same power or lifting force as the cylinder end. the rod end will have a smaller piston area= less force cus you must subtract the rod area and on big cyinders like that if you have a 6 inch rod 27.27 square inch less on the rod side.
mog5858 11 months ago
@mog5858
Did I ever say anything about which direction the piston was moving? :)
I am well aware of the differential between the rod/cap ends.
My statement was that it didn't matter whether the rod was up or down, since Extension is still Extension.
"The force applied is between the ends of the cylinder/rod unit", so it doesn't matter which way it is flipped, other than the static weight of the cylinder and fluid inside it.
Did I get that right, or do I need to brush up on Fluid Power again? ;)
ke6gwf 11 months ago
@ke6gwf Very nice. Glad to see some intelligent people on youtube =D
MotoScootMech 6 months ago
@farlinj
The rods are much smaller in diameter and so mounting them to the carbody is more space efficient. It gets the large diameter cylinders and large long hoses up out of the way, also allowing better visibility for the operator.
Look at the view out the side window, and picture the cylinders being there instead of the rods!
ke6gwf 1 year ago
lol well no shit man that things buckets pritty much the size of a 200. but the 200 is nice to run
yukonsledder09 2 years ago
'twould be a bitch doin' that with our 200!
kimchiman1000 3 years ago