Regenerative circuits are used when it is desirable to rapidly advance an actuator into position to reduce cycle time. When configured as a regenerative system, cylinders can be advanced more rapidly than in normal operation with the pump flow rate alone. In order to accomplish regeneration, the fluid leaving the rod end of the cylinder is routed back to the cap side of the cylinder to combine with the pump flow rate from the pump as shown in Figure.

Regenerative circuit ( during extension)

Regenerative circuit ( during retraction)