The new, modular CDM1 series of hydraulic cylinders from Rexroth offers engineers greater flexibility in design and configuration,. The product comprises three variants: CDM1 single-rod, CGM1 double-rod and the CSM1 cylinder axis with position measuring system for a multitude of hydraulic applications. With bores ranging from 25 to 200mm and piston rod diameters of 14 to 140mm, Rexroth’s CDM1 cylinder series covers a wide performance spectrum at a standard nominal pressure of 160 bar.
All sizes are available with stroke lengths of up to 3,000mm and provided with self-adjusting and adjustable end position cushioning. This ensures controlled and progressive deceleration in both end positions. The effective cushioning length adjusts to the requirements and allows short cushioning times. Novel 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 and serve as reliable end position controls. 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, chevron seal kits and seals can be supplied, optimised specifically for high temperature applications up to +150°C.