Overview
The SMC CDM2U25-150Z is a compact, double-acting, single-rod pneumatic cylinder from SMC’s proven CM2/CDM2 series. The “U” designation indicates an integrated air cushion that absorbs impact energy at both rod and cap ends, eliminating the need for external shock absorbers. With a 25mm bore and 150mm stroke, this cylinder delivers smooth low-speed operation and reduced maintenance costs compared to rubber bumper designs.
Key Features
- Air Cushion Damping: Integrated cushion valves at both ends provide smooth deceleration and load absorption without external buffers
- Compact Design: Round body profile minimizes space requirements and simplifies mounting in tight machinery layouts
- Double-Acting, Single-Rod: Independent extension and retraction control with full bore utilization on both strokes
- Automotive & Manufacturing Ready: Designed for machine tool environments with proven durability across food processing, automotive, and general factory automation
- Low-Maintenance Operation: Air cushion absorbs kinetic energy smoothly, reducing wear on machinery and extending service life
Technical Specifications
- Model Series: CM2/CDM2-Z (Compact Double-Acting, Air Cushion)
- Bore Diameter: 25 mm
- Stroke Length: 150 mm
- Cylinder Type: Double-Acting, Single Rod
- Cushion Type: Air Cushion (both cap and rod ends)
- Body Style: Round, compact profile
- Port Thread: Rc (ISO 7241 compliant)
- Magnet: Built-in (D-type) — compatible with inductive proximity switches
- Mounting: Basic (foot or rod-end mounting brackets available separately)
Typical Applications
- Machine tool positioning and indexing
- Clamping and workholding fixtures
- Material handling and part ejection
- Assembly line automation
- Food and beverage processing equipment
- Woodworking and metalworking machinery
- Low-speed load dampening in automated production lines
Compatibility & Replacements
Compatible With
- SMC solenoid directional control valves (4/3, 5/2 porting)
- Standard ISO 4401 cavity mounting systems
- ISO 1219 pneumatic circuit designs
- Common PLC-controlled pneumatic systems
- Industrial pneumatic compressed air networks (1–10 bar rated)
- Inductive proximity switches (built-in magnet support)
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. Direct replacement capability depends on mounting orientation, port location, and stroke requirements of the original application.
Works With
- SMC directional control valves (SY series, VF series)
- Coil-operated solenoid proportional valves
- Manual and air-piloted control systems
- Standard pneumatic tubing (Rc thread ports)
- Industrial automation and PLC control networks
