The AirTAC AirTAC SDA25X20N Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 20mm 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 SDA25X20N 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 riveted assembly keeps the total axial length exceptionally short, helping you shrink machine footprints where a conventional round-body unit would protrude. The 25 mm bore features a 10 mm piston rod and an M5x0.8 port.
This specific SKU omits the piston magnet, so it cannot host reed or electronic switches. End-of-travel energy is managed strictly by a fixed NBR bumper rather than an adjustable air cushion. Operating speed spans 30-500 mm/s, and the hard-anodized inner wall resists wear over millions of cycles.
| Model | AirTAC SDA25X20N Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 20 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. |
| ×20 | 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 gate in an electronics assembly line, using its 20 mm stroke to swiftly open and close the path for depaneling saws.
Folds minor corrugated box flaps prior to tape sealing, leveraging the short body to fit within tight packaging conveyor side frames.
Redirects small fluid vials between testing channels in an automated analyzer, taking advantage of the 245.4 N extend force to push carriers smoothly.
When sizing this model, stepping down to the SDA20 yields 157.1 N of push at 0.5 MPa, while stepping up to the SDA32 provides 402.1 N. For this 25 mm bore, a safe working load is roughly 147 N (about 60 percent of the 245.4 N figure), allowing a vertical lift of approximately 12.5 kg with a 2:1 safety margin. To finalize your order, confirm the 20 mm stroke, M5x0.8 port, female rod-end thread, and the absence of a sensor magnet.
Keep in mind that a standard compact actuator will not hold a load if air pressure drops or the valve centers. The piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a mechanical lock. If your application demands position holding without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 25 mm bore 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 is 50 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and runs at speeds of 30-500 mm/s.
No, this specific SKU lacks the internal piston magnet required for sensing. To use AirTAC reed or electronic switches, you must select the -S option code. Additionally, end-stop deceleration relies solely on a fixed NBR bumper, which cannot be field adjusted for speed regulation.
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