Hydraulic Power Units

A hydraulic power unit generates and distributes the hydraulic energy needed to operate cylinders, motors and other actuators. The motor drives the pump, which draws oil from the reservoir and delivers it into the circuit under pressure. Valves and control devices then regulate the pressure, flow and direction of the fluid according to the movements required by the system.

A hydraulic power unit, also known as a hydraulic power pack, generally includes a motor, a pump, an oil reservoir, control valves, filters and instruments for monitoring pressure, level and temperature. The configuration may also include heat exchangers, accumulators, sensors and additional safety or control devices.

Sizing is carried out by considering the operating pressure, the required flow rate, the power, the duty cycle, the number and type of services, the reservoir capacity, the temperature and the environmental conditions. The available space and the way the power unit will integrate into the machine or system must also be assessed.

A custom power unit is recommended when a standard solution does not fully meet the requirements of the application. It may be necessary in the presence of particular space constraints, multiple services, different pressure levels, complex duty cycles, demanding environmental conditions or specific automation, control and safety requirements.

The difference mainly concerns size, power, flow rate and the complexity of the application. Mini power units are compact solutions, suited to systems with limited space and modest requirements. Traditional hydraulic power units, on the other hand, allow for more elaborate configurations and can power complex industrial systems or several services at the same time.

Yes, provided the power unit is designed taking into account the technical characteristics of the existing circuit. It is necessary to check pressure, flow rate, connections, already-installed components, control logic and operating conditions. A proper preliminary analysis makes it possible to integrate the new unit while limiting modifications and incompatibilities.

Maintenance includes checking the level and condition of the oil, inspecting and replacing the filters, and checking pipes, fittings, seals, valves and measuring instruments. It is also important to monitor temperature, noise, any leaks and changes in performance. Scheduled maintenance helps prevent failures and machine downtime.

The price depends on power, pressure, flow rate, reservoir capacity, components, control systems and the degree of customization required. Operating conditions and any accessories also affect the final cost. To obtain a reliable estimate, it is therefore necessary to analyze the technical data and the characteristics of the application.