Moog electro-hydrostatic pump unit (EPU)

Moog has launched an electro-hydrostatic pump unit (EPU) designed to help machine builders and end users derive the combined benefits of both hydraulic and electric actuation.

The EPU helps enable the deployment of a decentralised drive system. This eliminates the need for a hydraulic power unit (HPU) and complex piping, thereby reducing the overall machine footprint. The compact product design features an interface that enables direct mounting onto a cylinder, thereby minimising the requirement of additional space on each axis.

The EPU has been developed to meet the needs of original equipment manufacturers (OEMs), system integrators and end users, who increasingly seek cleaner and more energy-efficient products without compromising on the requirement for high forces. The EPU is designed for easy installation and commissioning and reduces the number of components required.

The self-contained units have reduced chances of leakage and breakdown and help lower ongoing maintenance costs and the total cost of ownership (TCO).

The electro-hydrostatic pump unit can be used for a wide range of applications, such as metal forming, heavy industry, injection moulding and die-casting, gas and steam turbines, and wind turbine pitch control.

The pump unit is available either as a standalone unit or as an entire system, called the Electro-hydrostatic Actuation System (EAS). The EAS combines the electro-hydrostatic pump unit and any optional parts a user might need, such as drives, controllers, manifolds or cylinders.