The AirTAC AirTAC SDA25X65S Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 65mm 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 SDA25X65S 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 space-efficient unit, drastically reducing axial mounting depth compared to conventional round-body designs. The 25 mm bore features a hard-anodized inner wall and a two-way piston seal for reliable low-friction operation.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion. Operating at speeds between 30 and 500 mm/s, it provides a safe working load of roughly 147 N (about 60% of the 0.5 MPa push figure) and can vertically lift approximately 12.5 kg with a 2:1 safety margin.
| Model | AirTAC SDA25X65S Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 65 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. |
| ×65 | 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 the cutting tool head on an automated PCB depaneling machine, utilizing the 65 mm stroke to traverse the tool across the board edge cleanly.
Folds the minor flaps on small product cartons moving along a packaging conveyor, using the 245.4 N push force to overcome board stiffness.
Drives a pipetting head down into reagent trays, where the built-in magnet triggers an electronic switch to confirm the exact fluid extraction depth.
When sizing this actuator, evaluate your force requirements stepwise: the smaller SDA20 bore provides 157.1 N of push at 0.5 MPa, while stepping up to the SDA32 yields 402.1 N. The SDA25X65S strikes a middle ground with 245.4 N, making it ideal for medium-duty positioning tasks. To order correctly, confirm the 25 mm bore, 65 mm stroke, M5x0.8 port, female M5x0.8 rod thread, and the required -S magnet option.
Keep in mind that a standard compact cylinder cannot hold a load if air pressure drops or the valve is centered; the piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a mechanical lock. If your application demands strict position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve into your pneumatic circuit.
Quick checklist
At 0.5 MPa, this 25 mm bore cylinder outputs 245.4 N of push force and 206.2 N of pull force. Increasing the pressure to 0.7 MPa yields 343.6 N push and 288.6 N pull. The theoretical maximum push capacity is 50 kgf at the 1.0 MPa operating pressure limit.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion; for high-energy cycles, slow the approach or add an external shock absorber. The -S option provides a built-in magnet for tracking position with AirTAC reed or electronic switches mounted in the body grooves.
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