The AirTAC AirTAC SDA25X75B Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 75mm 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 SDA25X75B is a double-acting single-rod compact cylinder engineered for tight machinery footprints. Its riveted assembly minimizes axial mounting depth, outperforming conventional round bodies where space is restricted. Delivering 245.4 N of push force at 0.5 MPa, it provides a safe working load of roughly 147 N for reliable operation.
This specific SKU features a male M8x1.25 piston rod thread for secure load coupling and utilizes an M5x0.8 air port. The hard-anodized bore houses fixed NBR bumpers at each end to decelerate the stroke, which is not an adjustable air cushion. Note that this configuration lacks a piston magnet, so it cannot support magnetic sensing.
| Model | AirTAC SDA25X75B Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 75 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. |
| ×75 | 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 a secondary gate on a printed circuit board drilling station, utilizing the 75 mm stroke and male M8x1.25 rod to precisely position drill bit changers within a cramped enclosure.
Drives the mechanical flap folder on a compact packaging line, delivering 245.4 N of push force at 0.5 MPa to tuck corrugated cardboard flaps prior to sealing.
Powers a short diverter arm on a package routing conveyor, where the short riveted body saves axial depth and the 147 N safe working load easily redirects lightweight parcels.
When sizing this unit, compare its 245.4 N push force at 0.5 MPa against adjacent bores: stepping down to the SDA20 yields 157.1 N, while stepping up to the SDA32 provides 402.1 N. A practical vertical lift capacity is approximately 12.5 kg when applying a 2:1 safety margin. To finalize your order, confirm the 25 mm bore, 75 mm stroke, M5x0.8 port, male M8x1.25 rod thread, and the absence of a magnet.
Keep in mind that a standard compact cylinder does not hold its position if air pressure drops or the valve is centered. The piston will drift, and the fixed rubber bumper only decelerates it near the stroke end without acting as a lock. If your application requires suspended load holding, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 25 mm bore double-acting cylinder generates a push force of 245.4 N and a pull force of 206.2 N at 0.5 MPa. At 0.7 MPa, the push force is 343.6 N. The theoretical maximum push force is 50 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa and a speed range of 30-500 mm/s.
This specific SKU does not include a piston magnet, so it cannot support reed or electronic switches; you would need the -S variant for sensing. Stopping is handled by fixed NBR bumpers at each end that decelerate the piston, which is not an adjustable air cushion. For high-speed cycling, you should add an external shock absorber.
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