Patent ID: 8387680

Claim:
A device for hydraulically positioning rollers of strand guide segments of a continuous casting installation, comprising: at least two hydraulic cylinders for a respective strand guide segment, wherein each hydraulic cylinder comprises: a cylindrical body; a piston arranged in the cylindrical body and having a piston rod, the piston configured to divide the cylindrical body into a first cylinder space on a piston rod side of the piston and a second cylinder space on a side of the piston away from the piston rod, the piston being at least one of position-controlled and pressure-controlled; wherein, one of the first cylinder space and the second cylinder space being acted on by a constant pressure source that provides a constant pressure, wherein the other of the first cylinder space and the second cylinder space is configured to be acted on by a variable pressure source that provides a variable pressure; and a single-edge-controlled control valve acting upon each respective first cylinder space, whereby a number of hydraulic connection lines for the at least two hydraulic cylinders is reduced.