
SMC CD85N2050B (CD85N20-50-B) - Mini Air Cylinder, 20 mm bore, 50 mm stroke
SMC CD85N2050B Mini Air Cylinder — 20 mm bore, 50 mm stroke, rubber bumper (no air cushion), band mounting for auto switch. SMC C85 series ISO 6432 mini air cylinder, double acting, single rod, with built-in magnet (D) for auto switch detection. Basic mounting type (N), 20 mm bore, 50 mm stroke, rubber bumper cushioning and band mounting (B) for auto switches. Piston rod diameter 8 mm with M8 x 1.25 rod thread, G 1/8 port size. Air operated, 1.0 MPa maximum operating pressure, 1.5 MPa proof pressure, piston speed 50 to 1500 mm/s, allowable kinetic energy 0.27 J with rubber bumper. Ambient and fluid temperature -10 to 60 C for the built-in magnet type. Lubrication not required. Conforms to ISO 6432 and CETOP RP52P.
MPN: CD85N20-50-B · SKU: CD85N2050B
CD85N20-50-B Applications
A 50 mm stroke covers most general-purpose pushing, lifting, clamping and diverting jobs on assembly, packaging and food or beverage machinery. Rubber bumper cushioning keeps the cylinder short and economical and suits light loads within the 0.27 J impact limit; step up to the air-cushion version for heavier masses or faster cycles. The built-in magnet allows band-mounted D-series auto switches for position feedback, and the ISO 6432 body interchanges with other standard mini cylinders.
CD85N20-50-B Specifications
| Brand | SMC | Manufacturer Part No. | CD85N20-50-B |
| Series | C85 (ISO 6432) | Type | Mini air cylinder, double acting, single rod |
| Bore | 20 mm | Stroke | 50 mm |
| Cushion | Rubber bumper | Built-in Magnet | Yes (auto switch capable) |
| Auto Switch Mounting | Band mounting (B) | Mounting Style | Basic (N) |
| Piston Rod Diameter | 8 mm | Piston Rod Thread | M8 x 1.25 |
| Port Size | G 1/8 | Fluid | Air |
| Proof Pressure | 1.5 MPa | Max. Operating Pressure | 1.0 MPa |
| Piston Speed | 50 to 1500 mm/s | Allowable Kinetic Energy | 0.27 J (rubber bumper) |
| Ambient and Fluid Temperature | -10 to 60 C (built-in magnet type) | Lubrication | Not required |
| Standards | ISO 6432, CETOP RP52P |
CD85N20-50-B Datasheet & Manual
Download Datasheet & ManualSMC CD85N2050B · PDF · Official SMC documentTrusted by




