Axial piston pumps with variable displacement for open circuit for high pressure HPRs are axial pistons with variable displacement, oscillating plate, for open circuit applications. They are available in seven sizes with nominal displacements from 55 to 280 cm3/Giro. The scope delivered by the pump is proportional to the number of laps and the inclination corner of the oscillating dish, continuously modular. The maximum inclination of the dish can be mechanically limited by means of an appropriate regulation screw. Thanks to the constructive peculiarities, the HPR pumps are suitable for high exercise pressure (420 continuous bar and 500 peak bar). All pumps are equipped with a silencer (spu) to reduce sound emissions.