
SMC CDM2B4050Z (CDM2B40-50Z) - Air Cylinder, 40 mm Bore, 50 mm Stroke
SMC CDM2B4050Z Air Cylinder — 40 mm bore, 50 mm stroke, rubber bumper (no cushion suffix) variant, basic mount, built-in magnet. SMC CDM2B40-50Z is a CM2-Z series standard round-body air cylinder, double acting, single rod, with a 40 mm bore and 50 mm stroke. The leading D denotes a built-in magnet for auto switch mounting and B is the basic (double-side bossed) mounting style. No cushion letter follows the stroke, so the cylinder is supplied with the standard rubber bumper rather than air cushion. Rod end is the standard male thread (M14 x 1.5) and the piston rod diameter is 14 mm. Port size is Rc 1/4. Operates on air at a maximum operating pressure of 1.0 MPa, minimum 0.05 MPa, proof pressure 1.5 MPa, with a piston speed range of 50 to 750 mm/s and non-lube construction. Ambient and fluid temperature range is -10 to 60 C with an auto switch fitted. Allowable kinetic energy with rubber bumper and male thread is 1.2 J.
MPN: CDM2B40-50Z · SKU: CDM2B4050Z
CDM2B40-50Z Applications
A workhorse 40 mm bore actuator for clamping, pushing, lifting and transfer motions on production machinery where a short 50 mm stroke is enough. The standard rubber bumper suits moderate piston speeds and typical inertial loads without the extra cost of air cushioning. The built-in magnet lets D-M9 series auto switches mount directly on the barrel for stroke-end feedback to a PLC, and the basic double-side bossed body allows straightforward mounting to a frame, with foot, flange or clevis brackets available separately if a different fixing is later required.
CDM2B40-50Z Specifications
| Brand | SMC | Manufacturer Part No. | CDM2B40-50Z |
| Series | CM2-Z | Bore | 40 mm |
| Stroke | 50 mm | Action | Double Acting, Single Rod |
| Mounting | B - Basic (Double-Side Bossed) | Cushion | Rubber Bumper (standard, no cushion suffix) |
| Built-in Magnet | Yes (CDM2 - auto switch capable) | Piston Rod Diameter | 14 mm |
| Rod End Thread | Male thread M14 x 1.5 | Port Size | Rc 1/4 |
| Fluid | Air | Proof Pressure | 1.5 MPa |
| Maximum Operating Pressure | 1.0 MPa | Minimum Operating Pressure | 0.05 MPa |
| Piston Speed | 50 to 750 mm/s | Ambient and Fluid Temperature | -10 to 60 C with auto switch (no freezing) |
| Lubrication | Not required (non-lube) | Stroke Length Tolerance | +1.4 / 0 mm |
| Allowable Kinetic Energy | 1.2 J (rubber bumper, male thread) |
CDM2B40-50Z Datasheet & Manual
Download Datasheet & ManualSMC CDM2B4050Z · PDF · Official SMC documentTrusted by




