After having selected the most suitable cylinder and determined the oil volume required for the stroke, it is now necessary to choose the most suitable pump based upon the required oil volume. This volume can be defined by 1.2 multiplication of the oil volume required for the selected cylinder(s). In the case of double acting cylinders the retraction oil volume shall be subtracted from the volume of oil required to extend the cylinder. It’s also important to take into account the quantity of oil needed to fill the flexible hoses which is 32 cm³ for meter length.
The following tables allows an easy choice.
The coloured zones represent the maximum utilization limits for each pump type.
