Source: Marzocchi PompeEngineering faculty at the University of Bologna collaborated with Marzocchi Pompe to develop the Elika low-noise, high-efficiency hydraulic pump. Their dedicated design software aided in the design of a helical tooth profile to achieve a noise reduction of up to 20 dBA when compared to traditional external gear pumps. The design also acts to reduce pressure oscillations and vibrations in the hydraulic circuit.

The Elika external gear pump features a proprietary tooth profile and housing geometry. The helical gears guarantee continuity of movement despite having fewer teeth than conventional designs. Elika has a maximum working pressure of 300 bar and its smooth operation minimizes leaks and maximizes volumetric efficiency across a wide range of operating conditions.

ELIKA gear pumps are commonly coupled to an inverter or variable-speed drive to regulate the speed of the actuators. It is also particularly well suited for low noise applications that traditionally required more expensive technologies such as screw pumps, vane pumps or internal gear pumps.