
SMC CDQSB2525D (CDQSB25-25D) - Compact Air Cylinder, 25mm Bore, 25mm Stroke
SMC CDQSB2525D Compact Air Cylinder — 25 mm bore, 25 mm stroke. SMC CQS Series compact air cylinder, double acting, single rod, with built-in magnet for auto switch mounting (CDQS). Bore size 25 mm, standard stroke 25 mm, basic mounting (through-hole / both ends tapped common). Rod end female thread M6 x 1.0, rod diameter 12 mm, port size M5 x 0.8. Operating fluid air, non-lube (lubrication not required). Proof pressure 1.5 MPa, maximum operating pressure 1.0 MPa, minimum operating pressure 0.07 MPa. Piston speed 50 to 500 mm/s. Ambient and fluid temperature -10 to 70 C without auto switch, -10 to 60 C with auto switch (no freezing). Cushion: none as standard (rubber bumper available as option C). Stroke length tolerance +1.0/0 mm. Allowable kinetic energy 0.09 J. Theoretical output at 0.5 MPa: 245 N extending, 189 N retracting. Mass 197 g.
MPN: CDQSB25-25D · SKU: CDQSB2525D
CDQSB25-25D Applications
The 25 mm bore, 25 mm stroke CQS is a workhorse compact cylinder for clamping, indexing, pushing and lifting where a standard tie-rod cylinder would be too long. It develops around 245 N extending at 0.5 MPa. Flush-mounted auto switches on the square body report stroke ends without increasing the footprint, and the through-hole/tapped mounting pattern bolts straight into machine frames, jigs and conveyor guides used in packaging, assembly and material handling systems.
CDQSB25-25D Specifications
| Brand | SMC | Manufacturer Part No. | CDQSB25-25D |
| Series | CQS (CDQS with built-in magnet) | Type | Compact cylinder, standard type |
| Action | Double acting, single rod | Bore Size | 25 mm |
| Stroke | 25 mm | Mounting Style | B - Through-hole / both ends tapped common (basic) |
| Built-in Magnet | Yes (auto switch capable) | Rod End Thread | Female thread M6 x 1.0 |
| Rod Diameter | 12 mm | Port Size | M5 x 0.8 |
| Fluid | Air (non-lube) | Proof Pressure | 1.5 MPa |
| Max. Operating Pressure | 1.0 MPa | Min. Operating Pressure | 0.07 MPa |
| Piston Speed | 50 to 500 mm/s | Ambient and Fluid Temperature | -10 to 70 C (without auto switch); -10 to 60 C (with auto switch) |
| Cushion | None (rubber bumper optional) | Stroke Length Tolerance | +1.0 / 0 mm |
| Allowable Kinetic Energy | 0.09 J | Theoretical Output at 0.5 MPa | 245 N (out) / 189 N (in) |
| Mass | 197 g |
CDQSB25-25D Datasheet & Manual
Download Datasheet & ManualSMC CDQSB2525D · PDF · Official SMC documentTrusted by




