Construction machines, particularly excavators, contribute in a non-negligible percentage to CO2 emissions, which are considered one of the main causes of global warming. The excavators currently on the market have hydraulic architectures that are highly reliable from an operational standpoint but exhibit low energy efficiency, as only a small percentage of fuel is converted into useful net work for the actuators. The causes of energy losses are distributed among various components of the excavator hydraulic circuit, but the greatest contribution can be attributed to hydraulic distributors. For this reason, in recent decades, new types of systems have been studied with the aim of reducing energy dissipation during the excavator's operating cycle, and among these, the Common Pressure Rail (CPR) architecture has proven to be very advantageous in terms of fuel consumption.