The AirTAC AirTAC SDA25X35S Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 35mm 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 SDA25X35S 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. Its riveted assembly merges the barrel, rear cover, piston, and rod into a highly shortened unit, drastically reducing axial mounting depth where a conventional round-body actuator would be too long. The internal bore is hard-anodized, and the piston relies on a two-way seal for efficient operation.
This specific model includes a built-in piston magnet (-S) for direct compatibility with AirTAC magnetic switches, allowing you to use either reed or electronic sensors in the body grooves for position detection. End-stop deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning high-speed approaches may require external shock absorption. Operating speed ranges from 30-500 mm/s.
| Model | AirTAC SDA25X35S Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 35 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. |
| ×35 | 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).
Drives the short folding mechanism on packaging lines to tuck corrugated flaps prior to sealing, fitting neatly into tight conveyor side-frames.
Provides lateral push alignment for electronics assembly conveyors, using the magnetic sensor to confirm board positioning before pick-and-place.
Pushes plastic injection-molded trim pieces out of small sub-assembly fixtures, relying on the 245.4 N extend force to break the part free.
When sizing this 25 mm bore actuator, evaluate your force margins carefully. Stepping down to the SDA20 reduces the 0.5 MPa push capacity to 157.1 N, while moving up to the SDA32 increases it to 402.1 N. For the SDA25X35S, the safe working load is approximately 147 N (about 60% of the 245.4 N figure), translating to a vertical lift capability of roughly 12.5 kg with a 2:1 safety margin. Keep in mind a standard cylinder drifts when air pressure is lost or a valve is centered, as the fixed bumper only decelerates the stroke end rather than locking the load; utilize an external rod lock or pilot-operated check valve if position holding is mandatory. To order, confirm the 25 mm bore, 35 mm stroke, M5x0.8 port, required female M5x0.8 or male M8x1.25 rod thread, and the integrated magnet.
Quick checklist
This double-acting cylinder generates 245.4 N push and 206.2 N pull at 0.5 MPa, and 343.6 N push at 0.7 MPa. The theoretical maximum push force is 50 kgf at 1.0 MPa. Operating pressure ranges from 0.15-1.0 MPa, with a proof pressure of 1.5 MPa.
No, end-stop deceleration relies on a fixed NBR bumper, not an adjustable air cushion. Additionally, the piston will drift if air pressure drops or the valve is centered; the bumper only slows the stroke end and does not function as a locking brake. Use an external rod lock for position holding.
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