In many systems and machines in the higher performance range, p/Q control systems are used in order to transform the installed motor power as required, e.g. in fast forward movements or in powerful pressing processes. In this connection, the variable displacement pump takes over the function of a gear. DFEn are variable-speed system in which the energy-saving variable displacement pumps are combined with a variable-speed drive.

Sytronix DFEn systems comprise one electro-hydraulically controlled axial piston pump with a speed-variable asynchronous motor.

Pump drives DFEn 5020 and DFE 7020 are based on the proven SYDFE system for pressure and flow control of pumps.

Using industry standard inverter duty motors, up to 315 kW, results in a higher price/performance ratio and higher performance capabilities.