Position-controlled or pressure-controlled device for the hydraulic positioning of components

A device for hydraulically positioning rollers of strand guide segments of a continuous casting installation, comprising:

• at least one hydraulic cylinder, wherein the at least one hydraulic cylinder comprises:
• a cylindrical body;
• and
• 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 pressure source configured to provided an adjustable pressure that remains constant and after adjustment,
• wherein the other of the first cylinder space and the second cylinder space is configured to be acted on by a pressure controlled or portion controlled pressure a single-edge-controlled valve acting upon the first cylinder space.

A device for hydraulically positioning rollers of strand guide segments of a continuous casting installation, comprising:

• at least one hydraulic cylinder, wherein the at least one hydraulic cylinder comprises:
• a cylindrical body configured to form an annular cylinder space;
• and
• a piston arranged in the annular cylinder space having a piston rod the piston configured to divide the cylindrical body into a first cylinder space and a second cylinder space, the piston being at least one of position-controlled and pressure-controlled;
• at least one single-edge-controlled control valve configured to couple a pressure source to one of the first cylinder space and the second cylinder space, the pressure source configured to be at least one of an adjustable pressure and constant pressure,
• wherein the other of the first cylinder space and the second cylinder space is configured to be acted on by a preadjustable pressure.