SMC CD85N1625SB (CD85N16-25S-B) - Mini Air Cylinder, 16mm Bore, 25mm Stroke

SMC CD85N1625SB Mini Air Cylinder — 16 mm bore, 25 mm stroke, single acting spring return (S), rubber bumper, band-mount auto switch. SMC CD85N16-25S-B is a C85 series ISO 6432 round-body mini air cylinder with a 16 mm bore and 25 mm stroke. The S suffix denotes single acting, spring return: air extends the rod and the internal spring retracts it on exhaust, giving a defined fail-safe rest position. Mounting is basic (integral clevis, N) and a built-in magnet (D) allows band-mounted auto switches (B). Cushioning on single acting C85 cylinders is rubber bumper as standard. Fluid is air, maximum operating pressure 1.0 MPa with 1.5 MPa proof pressure, piston speed 50 to 1500 mm/s. Ambient and fluid temperature is -20 to 80 degC, limited to -10 to 60 degC by the built-in magnet. Spring force at 25 mm stroke for the 16 mm bore is 13.2 N retracted and 10.3 N extended. Piston rod diameter is 6 mm with an M6 x 1 rod thread and M5 x 0.8 ports. Allowable kinetic energy is 0.09 J. Lubrication is not required.

MPN: CD85N16-25S-B · SKU: CD85N1625SB

CD85N16-25S-B Applications

The spring-return build suits fail-safe duties where the rod must return to a known position if air is lost: gate closing, brake or stopper release, ejector retraction and simple clamping on packaging and assembly machinery. Only one air line is needed, simplifying valving and tubing. The internal spring gives 13.2 N retracted and 10.3 N extended at 25 mm stroke, and the built-in magnet supports band-mounted auto switches for position confirmation to the PLC.

CD85N16-25S-B Specifications