The AirTAC AirTAC SDA25X55 Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 55mm 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 SDA25X55 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 hard-anodized bore and two-way piston seal ensure reliable operation, while the 55 mm stroke extends reach without excessive bulk. This specific SKU lacks a piston magnet, so it cannot directly host magnetic sensing.
A defining feature of this series is the short riveted body, which saves valuable axial mounting depth where a conventional round-body cylinder would simply not fit. End-of-stroke deceleration is handled by a fixed NBR bumper at each end rather than an adjustable air cushion. The 10 mm piston rod uses a female M5x0.8 end thread, and the body accepts standard AirTAC compact-cylinder accessories.
| Model | AirTAC SDA25X55 Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 55 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. |
| ×55 | 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).
Provides the 245.4 N push at 0.5 MPa needed to clamp populated circuit boards securely within an electronics depaneling fixture before routing.
Uses its 55 mm stroke to fold minor corrugated box flaps at high speed, where the fixed NBR bumper absorbs the end stop without requiring external cushions.
Pushes lightweight plastic containers between conveyor lanes, taking advantage of the short riveted body to minimize axial footprint in tight transfer zones.
When sizing this actuator, consider stepping down to the SDA20 if your layout is tight, which provides 157.1 N of push at 0.5 MPa. If your mechanism requires more muscle, moving up to the SDA32 yields 402.1 N at the same pressure. For this SDA25X55 configuration, verify your ordering essentials: 25 mm bore, 55 mm stroke, M5x0.8 air port, female rod thread, and no magnet. A safe working load is approximately 147 N, allowing a vertical lift of about 12.5 kg with a 2:1 safety margin.
Remember that a plain compact cylinder does not hold its position or load when air is lost or the valve is centered; the piston will drift. The fixed NBR bumper only decelerates the stroke near its end and acts as neither a lock nor a brake. If your application must hold a load without live pressure, you should integrate an external rod lock or a pilot-operated check valve.
Quick checklist
The SDA25X55 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 the 1.0 MPa operating pressure limit.
No, this specific SKU does not include a piston magnet, so it cannot host reed or electronic switches. You would need the SDA25X55S variant to utilize the magnetic-switch grooves around the body for position sensing.
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