The AirTAC AirTAC SDA25X90SB Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 90mm 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 SDA25X90SB 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 body assembly significantly reduces axial mounting depth, making it highly effective for machinery where a standard round-body unit would protrude too far. The bore is hard-anodized for longevity, and the integrated -S piston magnet allows for position detection using an AirTAC reed or electronic switch seated in the body grooves.
This specific configuration includes a 90 mm stroke and a -B male-thread piston rod end (M8x1.25), providing a robust mechanical coupling for your load. Instead of an adjustable air cushion, the unit relies on a fixed NBR bumper at each end to decelerate the piston near stroke completion. Operating efficiently between 30-500 mm/s, it handles air filtered to 40 um across a 0.15-1.0 MPa pressure range.
| Model | AirTAC SDA25X90SB Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 90 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. |
| ×90 | 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).
Pushes lightweight cardboard cartons at 245.4 N onto a secondary packaging line, where the 90 mm stroke clears the belt boundary without occupying excessive frame depth.
Cycles electronic modules into sockets using the male M8x1.25 rod end for precise tooling attachment, relying on the fixed NBR bumper to soften the final 2 mm of insertion.
Acts as a retractable physical stop for plastic totes on a gravity roller conveyor, utilizing the magnetic sensor to confirm the 10 mm rod is fully clear before tote passage.
Selecting this 25 mm bore provides a safe working load of roughly 147 N, or a vertical lift capacity of about 12.5 kg when applying a 2:1 safety margin to the 245.4 N @0.5 MPa figure. If your application requires less force, stepping down to the SDA20 yields 157.1 N @0.5 MPa; conversely, scaling up to the SDA32 provides 402.1 N @0.5 MPa for heavier demands. Keep in mind that a plain compact cylinder does not hold its position upon air loss or valve centering—the piston will drift, and the fixed bumper only decelerates near the stroke end, so an external rod lock or pilot-operated check valve is necessary for suspended loads.
When submitting your RFQ, confirm this exact configuration: 25 mm bore, 90 mm stroke, M5x0.8 port, built-in magnet (S), and male M8x1.25 rod thread (B). Because the 90 mm stroke approaches the 130 mm maximum standard stroke limit for this bore, ensure your guiding mechanism accommodates the extended length.
Quick checklist
This double-acting cylinder generates 245.4 N push and 206.2 N pull at 0.5 MPa, increasing to 343.6 N push and 288.6 N pull at 0.7 MPa. The theoretical maximum push force is 50 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No, the SDA series uses a fixed NBR bumper at each end to decelerate the piston, which is not field-adjustable. If your machine cycle runs at high speed or moves a large mass, you should add an external shock absorber or throttle the approach speed.
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