Electrically-powered hydraulic power pack

for actuatorsoil

High-quality hydraulic power supply units are required to supply hydraulic oil to servohydraulic linear and rotary actuators, testing machines and test systems. Due to the use of servovalves, care must be taken to ensure the highest purity of the pressure oil in order to ensure a long service life of the valves. At the high pressures and oil velocities that occur in a servohydraulic system, even the smallest dirt particles at the control edges of the servo valve are highly erosive. Since the units often operate continuously around the clock, maintenance requirements and the ease of service are key considerations. In addition, modern hydraulic units have to meet high standards with regard to laboratory safety, energy consumption and environmental compatibility. Solution Instron hydraulic power supply units (HPUs) are the result of many years of experience in the field of high-pressure hydraulics. Instron offers 6 standardized hydraulic units with nominal flow rates between 26 l / min. Up to 365 l / min at operating pressure 280 bar (other operating pressures, e.g.: 210 bar are also possible). The power packs can be coupled to one another in order to enable larger flow rates, resulting in a large shared reservoir. The respective motors and pumps can be individually switched in order to ensure economical operation. Class A efficiency motors combined with variable flow pumps provide the best possible energy efficiency whilst the standard 280 Bar operating pressure provides further efficiency benefits in comparison to 210 bar systems.