The AirTAC AirTAC SDA25X90B 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 SDA25X90B 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 short, riveted assembly merges the barrel, rear cover, piston, and rod into a highly space-efficient unit, saving valuable axial mounting depth where a conventional round-body actuator simply cannot fit. The 25 mm bore features a hard-anodized inner wall and operates at speeds between 30 and 500 mm/s.
This specific SKU includes a male M8x1.25 threaded piston rod end for secure mechanical coupling to your load. Because it lacks the -S suffix, no piston magnet is installed, meaning it cannot directly host AirTAC reed or electronic switches. End-stop deceleration is handled strictly by fixed NBR bumpers rather than an adjustable air cushion, so operators should reduce approach speeds or utilize external shock absorbers for high-energy cycles.
| Model | AirTAC SDA25X90B 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).
Actuates a routing flap on a packaging conveyor, utilizing the 90 mm stroke and 245.4 N push force to redirect cartons into secondary processing lanes.
Drives a light-duty cutting fixture in electronics manufacturing, where the male M8x1.25 rod end securely mounts the tooling and the compact body minimizes machine footprint.
Pushes filled storage totes from an automated roller track, relying on the 206.2 N retract force to reset the ejector arm quickly for the next cycle.
When sizing this actuator, evaluate your force margins carefully: the SDA20 provides 157.1 N of push at 0.5 MPa, while stepping up to the SDA32 yields 402.1 N. The 245.4 N output of this 25 mm bore translates to a safe working load of roughly 147 N (about 60 percent capacity) or a vertical lift capability near 12.5 kg with a 2:1 safety factor. If your mechanism must maintain vertical position during air loss or valve centering, note that a standard SDA body will drift, as the NBR bumper only decelerates the stroke end rather than locking it; an external rod lock or pilot-operated check valve is necessary for true holding. To order, confirm the 25 mm bore, 90 mm stroke, M5x0.8 port, male M8x1.25 rod thread, and the absence of a sensor magnet.
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. It operates on filtered air between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa, and supports a speed range of 30-500 mm/s.
No, this model uses fixed NBR bumpers at both ends to decelerate the stroke end and does not feature an adjustable air cushion. Additionally, because this SKU lacks the -S magnet option, it cannot support AirTAC reed or electronic switches; you must select an SDA25X90BS variant if position sensing is required.
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