The AirTAC AirTAC SDA25X25B Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 25mm 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 SDA25X25B is a double-acting single-rod compact cylinder engineered for tight axial mounting spaces. It delivers a push force of 245.4 N and a pull force of 206.2 N at 0.5 MPa, operating efficiently between 30 and 500 mm/s. This specific SKU features a male M8x1.25 piston rod thread for secure mechanical load coupling, paired with an M5x0.8 air port.
Its riveted body design minimizes overall machine footprint compared to conventional round-body units. The bore is hard-anodized for longevity, while a fixed NBR bumper at each end manages end-stop impact. Note that this configuration omits the piston magnet, so it cannot host magnetic position switches.
| Model | AirTAC SDA25X25B Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 25 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. |
| ×25 | 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 routing spindle on an electronics assembly line, utilizing the 25 mm stroke and 245.4 N push force to cleanly sever printed circuit boards without overloading the compact frame.
Drives a mechanical flap folder on a packaging conveyor, where the short riveted body saves axial depth and the male M8x1.25 rod end secures the folding arm.
Presses dowel pins into aluminum jigs using a safe working load near 147 N, ensuring precise alignment while avoiding side-load stress on the 10 mm piston rod.
When sizing this unit, evaluate your force needs bidirectionally: stepping down to the SDA20 yields 157.1 N of push at 0.5 MPa, whereas stepping up to the SDA32 provides 402.1 N. Based on the 245.4 N output at 0.5 MPa, the safe working load is approximately 147 N (around 60% capacity), translating to a vertical lift capability of roughly 12.5 kg with a 2:1 safety margin.
Remember that a standard compact cylinder drifts when air pressure is lost or the valve centers, as the fixed bumper only decelerates the stroke end rather than locking the load. To maintain position without live pressure, an external rod lock or pilot-operated check valve is required. To order, confirm the 25 mm bore, 25 mm stroke, M5x0.8 port, male M8x1.25 rod thread, and no magnet.
Quick checklist
This 25 mm bore double-acting cylinder provides 245.4 N push and 206.2 N pull at 0.5 MPa, and 343.6 N push at 0.7 MPa. The theoretical maximum push is 50 kgf at 1.0 MPa. It operates on filtered air at 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and supports speeds of 30-500 mm/s across a -20 to +70 C temperature range.
No, this cylinder relies on a fixed NBR bumper at each end to decelerate the stroke end; it is not an adjustable air cushion, so external shock absorbers are advised for high-energy impacts. Additionally, this SKU lacks the -S piston magnet, meaning it cannot support reed or electronic switches.
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