The AirTAC AirTAC SDA25X15BH Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 15mm 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 SDA25X15BH is a double-acting single-rod compact cylinder engineered for tight axial spaces. It delivers a 245.4 N push at 0.5 MPa, supported by a 10 mm piston rod and an M5x0.8 port. The short riveted body drastically reduces mounting depth compared to round-body alternatives, making it ideal for dense machinery layouts. This specific SKU includes a male M8x1.25 threaded rod end for direct load coupling and utilizes fluororubber (FKM) seals for enhanced thermal and oil resistance.
End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow high-speed approaches or add external shock absorbers to mitigate impact energy. Because this configuration lacks the -S magnet option, it cannot support magnetic reed or electronic switches. Furthermore, the unit will not hold a load if air pressure drops; the fixed bumper only slows the piston near stroke end rather than locking it, so an external rod lock or pilot-operated check valve is required for position holding.
| Model | AirTAC SDA25X15BH Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 15 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. |
| ×15 | 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).
Secures aluminum workpieces in a CNC milling vise using the 245.4 N extend force, while the FKM seals resist coolant exposure and the male M8 thread bolts directly to the jaw.
Short 15 mm stroke rapidly tucks corrugated box flaps prior to tape sealing, where the compact riveted body prevents interference with adjacent packaging conveyor rails.
Pushes depaneled circuit boards out of a routing fixture; the non-magnetic piston avoids electromagnetic interference with sensitive board components.
When sizing this 25 mm bore actuator, evaluate your force margins carefully. Stepping down to the SDA20 reduces the 0.5 MPa push to 157.1 N, while stepping up to the SDA32 increases it to 402.1 N. For the SDA25X15BH, the 245.4 N output at 0.5 MPa translates to a safe working load of roughly 147 N (about 60 percent of capacity) or a vertical lift of approximately 12.5 kg with a 2:1 safety margin. Ensure your ordering essentials match this configuration: 25 mm bore, 15 mm stroke, M5x0.8 port, male M8x1.25 rod thread, and FKM seals.
Quick checklist
This 25 mm bore double-acting cylinder provides a push of 245.4 N and a pull of 206.2 N at 0.5 MPa. At 0.7 MPa, the push is 343.6 N and the pull is 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 speed of 30-500 mm/s.
No, the piston will drift if air pressure drops or the valve is centered. The fixed NBR bumper only decelerates the piston near the stroke end and does not act as a locking brake. To maintain vertical position without live pressure, you must install an external rod lock or a pilot-operated check valve.
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