Overview
The SMC CDM2D25-50 is a double-acting pneumatic cylinder from SMC’s proven CDM2 series. This pneumatic cylinder combines a 25mm bore with a compact 50mm stroke, delivering consistent performance in tight-space automation applications. Built with SMC’s magnetic piston rod and integral air-cushion design, the CDM2D25-50 ensures smooth operation and extended service life across motion control, clamping, and material-handling tasks.
Key Features
- Double-acting design with magnet-equipped piston rod
- Built-in air cushion for controlled end-of-stroke deceleration
- Double clevis (trunnion pivot) mounting brackets standard
- Male thread Rc1/8″ pneumatic ports (head and rod end)
- Compact 50mm stroke ideal for confined installation spaces
- Auto-switch compatible for position feedback and control
Technical Specifications
- Bore Diameter: 25mm
- Stroke Length: 50mm
- Type: Double-acting, single-rod pneumatic cylinder
- Maximum Operating Pressure: 1.0 MPa (145 psi / 10 bar)
- Minimum Operating Pressure: 0.05 MPa (0.7 psi)
- Port Connection: Rc1/8″ male threads (2× ports)
- Mounting Style: Double clevis (trunnion pivot)
- Piston Speed Range: 50–750 mm/s
- Operating Temperature: −10 to +70 °C (−14 to +158 °F)
- Series: CM2 / CDM2
- Rod End: Female thread (standard)
- Built-in Features: Magnet piston, air cushion
Typical Applications
- CNC machine tool fixtures and clamping systems
- Assembly line automation and pick-and-place actuators
- Packaging and labeling equipment motion control
- Precision positioning and indexing tables
- Industrial machinery and transfer-line actuators
- Coolant-exposed environments (excellent dust/moisture resistance)
Compatibility & Replacements
Compatible With
- SMC CM2-Z series pneumatic control systems
- SMC auto-switch position sensors (D-A9, D-M9, band-mount, or proximity types)
- Standard ISO 4401 pneumatic directional control valves
- Rc1/8″ NPTF / metric pneumatic piping and hose
- Most industrial PLC and automation platforms
Replaces / Drop-In Replacement For
The CDM2D25-50 is a direct replacement for other SMC CDM2D series cylinders with the same bore and stroke specifications. Verify end connection and mounting requirements with your original equipment documentation before ordering.
Works With
- SMC pneumatic solenoid valve systems
- Manual directional control valves (2/2, 3/2, 4/2, 4/3 spool types)
- Pneumatic pressure regulators and flow-control valves
- Proximity sensors and mechanical limit switches
- Industrial automation control software (via integrated or external auto-switches)












