Rexroth is launching a new CDM1 series of hydraulic cylinders with an innovative modular design.

Offering engineers greater flexibility in design and configuration, the hydraulic cylinder series consists of three variants: CDM1 single-rod, CGM1 double-rod and CSM1 cylinder with position measuring system.

Rexroth also offers the new cylinders, which are built in accordance with ISO 6020-1, as complete cylinder axes with position measuring system and sub-plate.

With bores ranging from 25-200mm and piston rod diameters of 14-140mm, Rexroth's CDM1 cylinder series covers a wide performance spectrum at a standard nominal pressure of 160bar. All sizes are available with stroke lengths of up to 3000mm and are provided with self-adjusting and adjustable end position cushioning. The effective cushioning length adjusts to the requirements and allows short cushioning times. Furthermore, the innovative geometry of the cushioning bushes prevents pressure peaks while the end position is being approached.

Integrated proximity switches sense the position of the piston rod in both end positions. To simplify positioning and open- and closed-loop control of the cylinder, a contact-free absolute position measuring system is available optionally.

Complementing the standard seal system supplied with the CDM1 series, Rexroth also offers a selection of seals that can be fitted to help increase servo performance by reducing friction. In addition, Rexroth can provide chevron seal kits and seals optimised specifically for high-temperature applications up to +150 degrees C. Further still, Rexroth installation and service engineers can accommodate enlarged pipe ports and new flanged connections with new sub-plates for high-response control valves, as well as for SL and SV valves. All in all, Rexroth offers a total of nine mounting types for this cylinder series.

To help ease the engineering design and selection process, Rexroth offers a practical and intuitive interactive Hydraulic Designer tool. By using this online guide, engineers can obtain dimensional drawings for the selected cylinder, as well as all technical details, including 2D and 3D files for direct upload to common CAD systems.

CDM1 series of hydraulic cylinders