Air-driven hydraulic power unit
for water

air-driven hydraulic power unit
air-driven hydraulic power unit
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Power source
for water
Operating pressure

100 bar, 600 bar, 1,000 bar, 2,000 bar
(1,450 psi, 8,702 psi, 14,504 psi, 29,008 psi)


High pressure hydraulic units for water In addition to the classic oil hydraulic units, Poppe + Potthoff Maschinenbau GmbH also supplies ready-to-connect water hydraulic units of up to 4,000 bar. The design of the units is largely identical to the oil hydraulic units. Water hydraulic units serve, for example, as a drive medium for washing pumps in machine tools. These systems are also available at various pressure levels and require only compressed air from the domestic air supply network as the drive medium. The desired operating pressure in the hydraulic units is set by means of a pressure reducer on the pneumatic drive side. The pressure ratio (e.g.: 1:600) produces the desired operating pressure. For example, a 5 bar inlet pressure corresponds to an operating pressure of 3,000 bar. When the desired high pressure is reached, the pump stops automatically and thus no longer consumes energy. A shut-off valve allows the separation of the unit and pressure output. The expansion valve also allows the pressure to be released into the tank. Performance data (4,000 bar unit): Pump: pneumatic actuator, single acting Pressure ratio: 1:600 Various pressure ranges: 100, 600, 1,000, 2,000 and 4,000 bar Operating pressure max.: 4,000 bar Air drive pressure: P = 1 – 10 bar Flow rate: as required Medium: water, water-emulsion


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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.