Yuken develops hydraulic piston pumps and hydraulic vane pumps. Piston pumps include AR series of variable displacement single pumps with pressure compensator type, A series of variable displacement single and double pumps up to 4060 PSI, and the AH series of variable displacement, single pumps with pressure compensator type. Line of vane pumps include the PVL series of single fixed displacement pumps up to 730 PSI, 50 T/150T/250F Series of single and double fixed displacement pumps with up to 1020 PSI, PV2R series of single and double fixed displacement pumps with up to 3050 PSI, and PV11R series of single fixed displacement pumps with up to 5800 PSI.