SMC CD85N830B (CD85N8-30-B) - Mini Air Cylinder, 8 mm Bore, 30 mm Stroke

SMC CD85N830B Mini Air Cylinder — 8 mm bore, 30 mm intermediate stroke, rubber bumper, band-mount auto switch. SMC C85 series ISO 6432 mini air cylinder, double-acting single rod, basic (integral clevis) 'N' mounting with built-in magnet ('D') for auto switch detection. Bore 8 mm, stroke 30 mm. Note: 30 mm is not one of the o8 standard strokes (10, 25, 40, 50, 80, 100 mm); the official SMC C85 catalogue states other strokes are available on request, and 30 mm is well within the o8 maximum stroke of 200 mm, so it is supplied as an intermediate stroke with no -X special-order suffix. Cushion is rubber bumper - the catalogue confirms air cushion is NOT available on the o8 bore ('Air cushion (Except o8)'), which is consistent with the absence of a 'C' in this part number. 'B' = band mounting for auto switches, ordered separately. Official SMC specifications: fluid air; double-acting, single rod; proof pressure 1.5 MPa; maximum operating pressure 1.0 MPa; piston speed 50 to 1500 mm/s; ambient and fluid temperature -20 to 80 C, restricted to -10 to 60 C by the built-in magnet; lubrication not required. Bore 8 mm details: piston rod diameter 4 mm, piston rod thread M4 x 0.7, port size M5 x 0.8. Weight: basic 45 g plus 3 g per 10 mm of stroke (approx. 54 g at 30 mm stroke).

MPN: CD85N8-30-B · SKU: CD85N830B

CD85N8-30-B Applications

The smallest bore in the C85 range, suited to light, space-constrained tasks such as small part ejection, product diverting, nozzle actuation, guarding interlocks and low-force clamping in laboratory, electronics and packaging equipment. With a 4 mm rod and M5 ports it delivers modest force at low air consumption. Air cushion is not offered at this bore, so the rubber bumper handles end-of-stroke shock; add speed controllers if cycle speeds are high. Band-mounted auto switches sense the built-in magnet.

CD85N8-30-B Specifications