SMC CDG3BN3250 (CDG3BN32-50) - Round Body Air Cylinder, 32mm Bore, 50mm Stroke

SMC CDG3BN3250 Round Body Air Cylinder — 32 mm bore, 50 mm stroke, basic mount, rubber bumper, built-in magnet (auto-switch capable), male rod end. SMC CDG3BN32-50 is a CG3 Series short-type round-body air cylinder, double acting, single rod. Model breakdown per SMC's official How to Order: C(D)G3 = series, D = built-in magnet (with auto switch), B = basic mounting style, N = rubber bumper cushion, 32 = 32 mm bore, 50 = 50 mm stroke; no rod-end symbol = male thread. The CG3 is SMC's shortened round-body cylinder - up to 51 mm shorter and up to 24% lighter than the equivalent CG1. Confirmed specifications (SMC catalog): action double acting, single rod; fluid air; proof pressure 1.0 MPa; maximum operating pressure 0.7 MPa; minimum operating pressure 0.05 MPa; ambient and fluid temperature -10 to 70 degC without auto switch, -10 to 60 degC with auto switch (no freezing); cushion rubber bumper (the only cushion available on CG3); lubrication not required (non-lube); stroke length tolerance +1.4/0 mm; piston speed 50 to 1000 mm/s (30 to 700 mm/s applies to the larger bores in the same table). For the 32 mm bore: piston rod diameter 12 mm, rod end thread M10 x 1.25 (male), piping port Rc 1/8, piston area 804 mm2 (out) / 691 mm2 (in), theoretical output 402 N at 0.5 MPa (out), allowable kinetic energy 0.46 J (male rod end). Standard strokes for bore 32: 25, 50, 75, 100, 125, 150, 200, 250, 300 mm - 50 mm is a standard stroke. Approximate mass ~0.30 kg (0.20 kg basic + 0.09 kg/50 mm stroke + 0.01 kg magnet). Materials: aluminium alloy rod/tube covers and piston, hard-chrome-plated carbon steel piston rod, NBR seals. Mountings available in the series: basic, foot, rod flange, head flange, clevis. NOTE (from SMC WEB Catalog): CG3/CDG3 manufacture was discontinued (end Nov 2025 / SMC lists 1-2026); the replacement series is CG3-Z1..

MPN: CDG3BN32-50 · SKU: CDG3BN3250

CDG3BN32-50 Applications

Use the CDG3BN32-50 wherever a standard round-body cylinder is needed but panel depth or machine footprint is tight - the CG3 body is up to 51 mm shorter than CG1 for the same bore and stroke. Typical duties include pushing, clamping, lifting and transfer on assembly lines, packaging machines and material-handling jigs. The built-in piston magnet lets you band-mount SMC auto switches for end-of-stroke position sensing, and the rubber bumper absorbs end-of-stroke impact at up to 0.7 MPa.

CDG3BN32-50 Specifications