
Model R4 Radial Piston Pump
Fixed Displacement operation
Key features:
- Sizes 0.4 to 2.0
 - Radial piston pump with 3 pistons
 - Very compact build, hence installation-friendly dimensions
 - 5 sizes
 
Bosch Rexroth R4 Radial Piston Pump

Model PR4 Radial Piston Pump
Fixed Displacement operation![]()
Key features:
- Sizes 1.6 to 20.0
 - Radial piston pump with 3, 5 or 10 pistons
 - Self-aspirating, valve-controlled
 - Long bearing life due to hydro-dynamically lubricated plain bearings
 - Several pressure ports with various cylinder combinations possible
 - Optional combination with fixed and variable displacement vane and axial piston pumps
 - 14 sizes, favorable gradation for optimum matching to the application at hand
 
Bosch Rexroth Fixed Displacement PR4 Radial Piston Pump