The AirTAC AirTAC SDA12X40BH Compact Cylinder | 12mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø12mm bore and 40mm 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 SDA12X40BH is a double-acting, single-rod compact cylinder engineered for tight machinery footprints. Its riveted assembly significantly reduces axial mounting depth compared to round-body units, while the hard-anodized 12 mm bore yields a push force of 56.5 N and a pull force of 42.4 N at 0.5 MPa. This specific SKU features a male M5x0.8 threaded piston rod and high-temperature fluororubber (FKM) seals.
End-of-travel deceleration relies on a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be specified for high-energy cycles. Because this configuration lacks the -S magnet option, it cannot directly host AirTAC reed or electronic switches. Operating speed spans 30-500 mm/s, and the 40 mm stroke falls well within the 60 mm standard limit for this bore size.
| Model | AirTAC SDA12X40BH Compact Cylinder | 12mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø12 mm |
| Stroke | 40 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. |
| ×40 | 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).
Positions thin electronic boards within pick-and-place machinery, utilizing the minimal axial footprint and 56.5 N extend force to nudge panels without damaging delicate traces.
Drives a small-volume fluid dispensing valve where the FKM seals resist chemical exposure and the 40 mm stroke provides precise metering strokes.
Pushes lightweight molded plastic components out of a machining fixture, relying on the male M5x0.8 rod end to securely thread into the ejection fork.
When sizing this 12 mm bore actuator, note that it provides a 56.5 N push at 0.5 MPa, yielding a safe working load of roughly 34 N (about 60 percent of capacity) and a vertical lift capability of approximately 2.9 kg with a 2:1 safety margin. If your application requires greater thrust, stepping up to the SDA16 increases output to 100.5 N at 0.5 MPa. Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only slows the piston near stroke end and will not lock the load, so an external rod lock or pilot-operated check valve is necessary for strict position holding. To order, confirm the 12 mm bore, 40 mm stroke, M5x0.8 port, male M5x0.8 rod thread, FKM seals, and the absence of a sensor magnet.
Quick checklist
This 12 mm bore double-acting cylinder generates 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 the maximum operating pressure of 1.0 MPa.
No, this specific SKU does not include a piston magnet, so it cannot host AirTAC reed or electronic switches. You would need the -S variant for sensing capabilities. Additionally, it uses a fixed NBR bumper for end-stop deceleration, which is not an adjustable air cushion.
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