The AirTAC AirTAC SDA25X30S Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 30mm 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 SDA25X30S is a double-acting single-rod compact cylinder engineered to deliver 245.4 N of push force and 206.2 N of pull force at 0.5 MPa. By utilizing a short riveted body that permanently joins the barrel, rear cover, piston, and rod, this unit achieves an exceptionally small axial footprint. This space-saving architecture is ideal for machinery where a traditional round-body unit would protrude too far or demand excessive mounting depth.
This specific model includes a built-in piston magnet (indicated by the S option) allowing integration with AirTAC reed or electronic switches housed in the grooves around the body. The 10 mm piston rod features a female M5x0.8 thread end for load coupling, while air connects via an M5x0.8 port. End-stopping is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require an external shock absorber to prevent wear.
| Model | AirTAC SDA25X30S Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 30 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. |
| ×30 | 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 and edges printed circuit boards on a pick-and-place conveyor using 245.4 N of extend force, fitting neatly into tight electronics assembly enclosures.
Actuates a short 30 mm stroke to tuck packaging flaps on a high-speed cartoner, where the fixed NBR bumper absorbs the repetitive end-stop impact.
Moves a liquid dispensing nozzle over microplates with a 12.5 kg vertical lift margin, relying on the S magnet for precise electronic switch positioning.
Selecting this 25 mm bore provides a theoretical safe working load of roughly 147 N (about 60% of the 245.4 N push at 0.5 MPa), which translates to a vertical lift capacity of approximately 12.5 kg with a 2:1 safety margin. If your application requires less force, stepping down to the SDA20 yields 157.1 N of push at 0.5 MPa, while heavier loads might necessitate stepping up to the SDA32, which provides 402.1 N. Keep in mind that a plain compact cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates the stroke end rather than locking the load; a pilot-operated check valve or external rod lock is required for position holding. When ordering, confirm the 30 mm stroke, M5x0.8 port, built-in magnet, and female rod thread.
Quick checklist
At 0.5 MPa, this double-acting cylinder provides 245.4 N of push (extend) force and 206.2 N of pull (retract) force. At 0.7 MPa, push increases to 343.6 N. The theoretical maximum push is 50 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a speed range of 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. For high-speed cycles, you should add an external shock absorber. Additionally, the cylinder does not hold its load if air is lost; the piston will drift, requiring an external rod lock for secure positioning.
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