The AirTAC AirTAC SDA25X45B Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 45mm 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 SDA25X45B 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 significantly reduces axial mounting depth compared to conventional round-body units, making it highly effective for tight machinery footprints. The unit operates at speeds between 30 and 500 mm/s.
This specific SKU features a male M8x1.25 piston rod thread for direct load coupling and uses an M5x0.8 port. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable cushion, meaning high-energy cycles may require an external shock absorber. Note that this configuration omits the piston magnet, so magnetic position sensing is not supported without upgrading to the -S variant.
| Model | AirTAC SDA25X45B Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 45 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. |
| ×45 | 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 Z-axis plunge on a printed circuit board routing spindle, utilizing the 45 mm stroke and compact body to minimize headroom above the workbed.
Actuates a mechanical arm to tuck minor flaps on a packaging line, where the 245.4 N push force easily overcomes cardboard resistance.
Ejects small stamped metal pins from a die using the male M8x1.25 rod end, benefiting from the fixed NBR bumper to soften the retraction stop.
When sizing this actuator, 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. The 245.4 N output at 0.5 MPa translates to a safe working load of roughly 147 N or a vertical lift capacity of about 12.5 kg with a 2:1 safety margin. Keep in mind that a standard compact cylinder will drift and cannot hold a load if air pressure drops or the valve is centered; applying an external rod lock or pilot-operated check valve is necessary for secure holding. To order, confirm the 25 mm bore, 45 mm stroke, M5x0.8 port, male M8x1.25 rod thread, and no magnet.
Quick checklist
At 0.5 MPa, this 25 mm bore cylinder provides 245.4 N of push and 206.2 N of pull. At 0.7 MPa, push increases to 343.6 N. The theoretical maximum push is 50 kgf at the 1.0 MPa operating pressure limit.
No, this specific SKU lacks the internal piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need the SDA25X45BS variant to utilize the magnetic sensor grooves molded around the body.
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