The AirTAC AirTAC SDA25X25S Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 25mm 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 SDA25X25S is a double-acting, single-rod compact cylinder engineered to deliver 245.4 N of push force at 0.5 MPa. Its short riveted body merges the barrel, rear cover, and piston to drastically reduce axial mounting depth, making it ideal for machinery where space is strictly limited. The 25 mm bore features a hard-anodized inner wall and a two-way piston seal for reliable, long-life operation.
Because this unit includes the S option, it possesses a built-in piston magnet for position detection. This allows you to mount AirTAC reed or electronic switches directly into the grooves around the body. The 10 mm rod uses a fixed NBR bumper at each end to decelerate the stroke, and the M5x0.8 port ensures straightforward pneumatic integration.
| Model | AirTAC SDA25X25S Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | M5×0.8 |
| Rod end thread | M5×0.8 female / M8×1.25 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 120 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 | 245 N | 206 N |
| 0.7 MPa | 344 N | — |
| Max (@1.0 MPa) | 50 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. |
|---|---|
| 25 | Bore size in mm. |
| ×25 | 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).
Actuates a routing blade to singulate printed circuit boards, utilizing the 25 mm stroke and 245.4 N push force to cleanly cut through substrate materials without excessive bulk.
Drives a mechanical arm to tuck minor flaps on packaging lines, where the built-in S magnet confirms fold completion via a reed or electronic switch before the sealer head descends.
Pushes plastic bottles into alternate conveyor lanes at high speed, relying on the fixed NBR bumper to absorb end-of-stroke impact within a tight machinery footprint.
When sizing this actuator, evaluate your force requirements in both directions. Stepping down to the SDA20 provides 157.1 N of push at 0.5 MPa, while stepping up to the SDA32 yields 402.1 N at the same pressure. For the SDA25X25S, the safe working load is approximately 147 N (about 60% of the 245.4 N figure), translating to a vertical lift capacity of roughly 12.5 kg with a 2:1 safety margin.
Remember that a standard compact cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates near the stroke end rather than locking the load. If your application requires strict position holding, you must integrate an external rod lock or a pilot-operated check valve. To order, confirm the 25 mm bore, 25 mm stroke, M5x0.8 port, the S magnet option, and whether you need the default female M5x0.8 rod thread or the male M8x1.25 alternative.
Quick checklist
At 0.5 MPa, the push force is 245.4 N and the pull force is 206.2 N. At 0.7 MPa, the push force is 343.6 N and the pull force is 288.6 N. The theoretical maximum push force is 50 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
It uses a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. For high-speed applications, you should slow the approach or add an external shock absorber. The S option provides a built-in magnet for AirTAC reed or electronic switches mounted in the body grooves.
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