Surface area of the piston Ap minus the surface area of the piston rod Ar St:
When performing an accurate force measurement of a hydraulic cylinder with a dual effect and a piston rod on one side (differential cylinder) the pressure which may be acting on the annular area must be observed.
The annular area for synchronizing cylinders is the double sided working area.
The hydraulically effective annulus area Aa of the rod side of hydraulic cylinders is calculated from the piston diameter dp, the rod diameter dr and the number of cylinders ic.
Calculate the annular area directly and easily in our hydraulic calculator.