Rexroth piston pump

Rexroth psiton pumps are used for high-pressure applications and have a series of pistons in a circular array within a cylinder block. They can be either axial or radial piston pumps:
Axial Piston Pumps: The pistons are arranged parallel to the drive shaft. They can come in variable displacement models, which allows for the change in the flow rate and system pressure.
Radial Piston Pumps: The pistons are arranged perpendicularly to the drive shaft and are typically used for very high-pressure and relatively low-flow applications.