Air-driven hydraulic power unit

oilfor testing machine

Poppe + Potthoff Maschinenbau GmbH supplies ready-to-connect hydraulic units up to 4,000 bar. A pneumatically driven piston pump is used for pressure generation. The pump is simply connected to the existing domestic air supply network. Accordingly, no electrical connection is necessary for the construction of the pressure. Our hydraulic units are available in various pressure stages and are used, for example, in hydraulic clamping systems. The desired operating pressure is set at the hydraulic units by means of a pressure reducer on the pneumatic drive side. The transmission ratio (e.g.: 1:600) provides 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: various oils