How do you calculate the retraction speed of a cylinder?
To find the retraction speed of a cylinder, use this
cylinder retraction speed formula:
Cylinder Rod Retraction Speed (Inches/Minute) = ( 231 x Q ) / Annulus
Q = Flow Rate in Gallons per Minute
Annulus Area = Piston Area - Rod Area
A cylinder with a piston diameter of 4 inches, rod diameter of 2 inches,
and a flow rate of 10 Gallon/Minute into the rod end has a retraction
Retraction Speed = ( 231 x 10 ) / (12.5664-3.1416)
Retraction Speed = 245.0980 inches/minute or 4.0850 inches/second
(rounded to the nearest 10,000th)
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