
SMC CDQSB125DM (CDQSB12-5DM) - Compact Air Cylinder, 12mm Bore, 5mm Stroke
SMC CDQSB125DM Compact Air Cylinder — 12mm bore, 5mm stroke, double acting single rod, rod end MALE thread (option M) - distinct from CDQSB12-5D which has the standard female rod thread. SMC CDQSB12-5DM is a CQS Series Compact Cylinder, Standard Type, Double Acting, Single Rod, with a 12 mm bore and a 5 mm standard stroke. Note the part number parses as bore 12 with stroke 5 (CDQSB12-5DM), not bore 125. The D prefix denotes a built-in magnet for auto switch mounting, B is the basic mounting style, and option M specifies a rod end male thread in place of the standard female thread, which is the only difference from CDQSB12-5D. Operating fluid is air, proof pressure 1.5 MPa, maximum operating pressure 1.0 MPa, lubrication not required (non-lube), piston speed 50 to 500 mm/s, and ambient and fluid temperature -10 to 70 degrees C without auto switch or -10 to 60 degrees C with auto switch (no freezing). Supplied without auto switch as standard.
MPN: CDQSB12-5DM · SKU: CDQSB125DM
CDQSB12-5DM Applications
An ultra-short-stroke compact cylinder for precision work needing only a few millimetres of travel, specified with a male rod end thread. The 12 mm bore and 5 mm stroke suit fine clamping, pin locating, small part holding, nozzle lift and micro-ejection on electronics assembly, test rigs and packaging machinery. The male rod thread accepts a rod end nut, single or double knuckle joint or a floating joint, which makes it the right choice when the rod must couple to an existing linkage rather than receive a threaded stud. The built-in magnet supports flush auto switch mounting.
CDQSB12-5DM Specifications
| Brand | SMC | Manufacturer Part No. | CDQSB12-5DM |
| Series | CQS Compact Cylinder (Standard Type) | Bore | 12 mm |
| Stroke | 5 mm | Action | Double Acting, Single Rod |
| Mounting Style | B - Basic | Built-in Magnet | Yes (D) |
| Option | M - Rod End Male Thread | Rod End Thread | Male Thread |
| Cushion | None | Fluid | Air |
| Proof Pressure | 1.5 MPa | Maximum Operating Pressure | 1.0 MPa |
| Lubrication | Not required (Non-lube) | Piston Speed | 50 to 500 mm/s |
| Ambient and Fluid Temperature | Without auto switch: -10 to 70 C; With auto switch: -10 to 60 C (No freezing) | Auto Switch | Without Auto Switch |
CDQSB12-5DM Datasheet & Manual
Download Datasheet & ManualSMC CDQSB125DM · PDF · Official SMC documentTrusted by




