The AirTAC AirTAC SDA12X55S Compact Cylinder | 12mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø12mm bore and 55mm 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 SDA12X55S is a double-acting, single-rod compact cylinder engineered for tight spaces. It generates 56.5 N of push force at 0.5 MPa, making it suitable for light-duty positioning. The riveted body design significantly reduces axial mounting depth compared to round-body alternatives, while the hard-anodized bore ensures durability.
This specific model includes a built-in piston magnet (-S) for use with AirTAC reed or electronic switches. It features a 6 mm piston rod and female M3x0.5 rod-end thread. End-of-stroke deceleration is handled by a fixed NBR bumper, which is not field-adjustable.
| Model | AirTAC SDA12X55S Compact Cylinder | 12mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø12 mm |
| Stroke | 55 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. |
| ×55 | 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 56.5 N of push to eject small printed circuit boards from test fixtures without damaging delicate traces.
Actuates diverter gates on vibratory bowl feeders to route small plastic or electronic components accurately.
Moves light analytical trays or vials within automated diagnostic equipment where axial space is highly restricted.
For sizing, the SDA12X55S provides 56.5 N push at 0.5 MPa. If less force is acceptable, note that this is the smallest bore available. Stepping up to the SDA16 increases the push force to 100.5 N at 0.5 MPa. A safe working load is approximately 34 N (about 60% of the 56.5 N figure), allowing a vertical lift of roughly 2.9 kg with a 2:1 safety margin.
When ordering, confirm the 12 mm bore, 55 mm stroke, M5x0.8 port, female rod thread, and the required -S magnet. Note that a plain cylinder drifts when air is lost or the valve is centered; the fixed bumper only decelerates near the stroke end and does not lock the load. Use an external rod lock or pilot-operated check valve if position holding is required.
Quick checklist
This 12 mm bore 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. The theoretical maximum push force is 12 kgf at 1.0 MPa.
No, it uses a fixed NBR bumper at each end to decelerate the stroke. It is not an adjustable air cushion. For high-speed or high-energy cycles, you should add an external shock absorber or slow the approach speed.
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