These are the differences between a fixed displacement hydraulic pump vs. a variable displacement hydraulic pump. When should you use one over the other?
This is a catalog for a fixed displacement bent axis hydraulic piston pump. This pump can be used in a wide range of application in which you required a fixed displacement pump that is able to maintain higher pressure than the standard hydraulic gear pumps.
This is a compact design hydraulic radial piston pump used for some of the higher range pressure applications in hydraulics. In my opinion a very cool design that can offer a good solution for many applications.