The AirTAC AirTAC SDA25X50S Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 50mm 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 SDA25X50S 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 an exceptionally short axial package, drastically reducing mounting depth where a conventional round-body unit would be too bulky. The 10 mm piston rod utilizes a female M5x0.8 thread, while the body features a hard-anodized bore and a two-way piston seal for reliable service.
Because this unit carries the S option, it includes a built-in piston magnet designed to interface seamlessly with AirTAC reed or electronic switches housed in the peripheral body grooves. Deceleration at the stroke extremes relies on a fixed NBR bumper rather than a field-adjustable air cushion, meaning high-energy cycles may require an external shock absorber or a slowed approach speed.
| Model | AirTAC SDA25X50S Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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. |
| ×50 | 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 arms on case erecting lines, utilizing the 50 mm stroke and 245.4 N output to tuck packaging flaps before tape application.
Actuates routing gates on logistics conveyors, where the compact riveted body fits within tight side-frame clearances to push parcels between sorting lanes.
Lowers spring-loaded test pins onto printed circuit boards, relying on the built-in magnet to trigger AirTAC electronic switches for position confirmation.
When sizing this 25 mm bore, evaluate your neighbors: stepping down to the SDA20 yields 157.1 N of push at 0.5 MPa, while stepping up to the SDA32 provides 402.1 N. For this specific configuration, 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. Confirm your ordering essentials: 25 mm bore, 50 mm stroke, M5x0.8 port, female rod thread, and the S magnet option. Remember that a standard compact unit drifts when air pressure is lost or the valve is centered; if your process must hold a load without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
At 0.5 MPa, this double-acting cylinder generates 245.4 N of push force and 206.2 N of pull force. At 0.7 MPa, push increases to 343.6 N and pull to 288.6 N. The theoretical maximum push is 50 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa, and the operational speed spans 30-500 mm/s.
No, it uses a fixed NBR bumper at each end to absorb end-stop impact. This bumper is not a field-adjustable air cushion, nor does it function as a locking brake. For high-speed or high-energy cycles, you should slow the approach speed or install an external shock absorber to prevent damage.
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