Electro Hydraulic Servo Axis

Electro Hydraulic Servo Axis

Bosch Rexroth offers stand-alone self-contained Electro-Hydraulic Servo Axis (SHA) that are fully compatible with electromechanical variants. Stand-alone axes with identical servo-drives for actuators with mechanical or hydraulic force transmission offer new degrees of freedom for machine manufacturers in finding drive solutions that suit specific application requirements. The versions with hydraulic transmission are provided with their own, decentralised fluid circuit. The installation, commissioning and connection to controls and Industry 4.0 environments via a Multi-Ethernet interface or ProfiBus are identical on both variants. These largely consist of electrical and hydraulic series components. They pair all the functions known from servo-drives with the physical advantages of fluid power technology such as high power density and robustness. The standardised sub-assemblies, that is, hydraulic cylinder, control block and motor/pump group, form the basis for these linear axes of modular design. They are fitted with their own, closed fluid circuit and do without a central hydraulic power unit. The leak-free fluid circuit requires only a very small amount of hydraulic fluid. Rexroth delivers the axes completely pre-assembled, filled with hydraulic fluid and commissioned. The system is virtually maintenance-free and the fluid medium service life corresponds to that of the axis.

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