This International Standard lays down the port dimensions for 160 bar1) (16 MPa) medium series cylinders as required for interchangeability of commonly used hydraulic cylinders.
NOTE — This International Standard allows manufacturers of hydraulic equipment freedom in design of metric cylinders; it does not restrict technical development but provides basic guidelines.
The medium series dimensions are applicable to both round or square head cylinders thus allowing a wider range of application. They permit larger ports2) with longer cushions that are particularly suitable for applications requiring higher velocity and rapid decelerations.
DS/ISO 8136:1989 history
1989DS/ISO 8136:1989 Hydraulic fluid power. Single rod cylinders, 160 bar (16 MPa) medium series. Port dimensions