Hydraulic units serve to generate the volume flow needed for servo-hydraulic testing cylinders.They supply the hydraulic clampings and and adjustments of the traverse at the machine frame and the hydraulic clamping devices.Features constant operation pressure very fine filter in pressure and return line pressure liquid lofts guarantee a stable, vibration-free volume flow supply and for a short time high pressure oil requirement control of all important functional conditions oil-air-heat exchanger or oil-water-heat exchanger, as desired