The AirTAC SDA12X45S Compact Cylinder | 12mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø12mm bore and 45mm stroke, M5×0.8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA12X45S is a double-acting, single-rod compact cylinder engineered for tight machinery footprints. A riveted assembly unites the barrel, rear cover, piston, and 6mm rod to drastically reduce axial mounting depth compared to round-body units. Delivering 56.5 N of push force at 0.5 MPa, it is built for light-duty positioning.
This specific unit includes the -S option, meaning it carries a built-in piston magnet for tracking by AirTAC reed or electronic switches housed in the body grooves. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, ensuring reliable stopping within the 30-500 mm/s speed range.
| Model | AirTAC SDA12X45S Compact Cylinder | 12mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø12 mm |
| Stroke | 45 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M3×0.5 female / M5×0.8 male (B) |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 500 mm/s |
| Cushion | Fixed NBR bumper (both ends) |
| Max standard stroke | Up to 50 mm |
Specifications follow the official AirTAC SDA compact-cylinder datasheet. Confirm against the product label before installation. Port thread: PT (standard). Rod: female thread (blank) / male thread (B).
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 57 N | 42 N |
| 0.7 MPa | 79 N | — |
| Max (@1.0 MPa) | 12 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
| SDA | Compact (thin) double-acting cylinder series. |
|---|---|
| 12 | Bore size in mm. |
| ×45 | Stroke length in mm. |
| S | Built-in magnet for magnetic-switch position sensing (omit = no magnet). |
| B | Male-thread piston rod (omit = female-thread rod). |
Thread: PT standard. Related SDA-family variants: SSA (single-acting push), STA (single-acting pull), SDAD (double rod), SDAJ (adjustable stroke), SDAT (duplex), SDAW (duplex-end).
Provides the precise 56.5 N push at 0.5 MPa needed to eject vials or microplates from analytical centrifuges without risking glass breakage.
Actuates miniature routing gates on conveyor systems for pharmaceutical packaging, using its built-in magnet to confirm stroke position for high-speed sorting.
If your application requires slightly more thrust, stepping up to the SDA16 increases the push force to 100.5 N at 0.5 MPa. As the smallest available bore in the series, there is no smaller standard SDA option.
To confirm your ordering essentials: specify the 12mm bore, 45mm stroke, M5x0.8 air port, female M3x0.5 rod-end thread, and the required -S internal magnet. Note that a standard cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the stroke end and does not function as a locking brake. For vertical or suspended loads that must be held without live pressure, incorporate an external rod lock or pilot-operated check valve.
Quick checklist
This 12mm bore double-acting cylinder provides a push force of 56.5 N and a pull force of 42.4 N at 0.5 MPa. At 0.7 MPa, the push force is 79.2 N and pull is 59.4 N. The theoretical maximum push is 12 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa, has a proof pressure of 1.5 MPa, and functions in temperatures from -20 to +70 C.
No, the SDA12X45S relies on a fixed NBR bumper at each end to absorb end-of-stroke impact; it does not feature an adjustable air cushion. For high-speed or high-energy cycles, you should slow the approach speed or install an external shock absorber. Additionally, the -S designation indicates a built-in piston magnet designed to trigger AirTAC reed or electronic switches.
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