The AirTAC AirTAC SDA25X50H Compact Cylinder | 25mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø25mm bore and 50mm 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 SDA25X50H is a double-acting single-rod compact cylinder engineered with a 50 mm stroke and a 25 mm bore. It provides 245.4 N of push force and 206.2 N of pull force at 0.5 MPa. This specific SKU utilizes a fluororubber (FKM) seal, offering enhanced resistance to higher temperatures and oil exposure compared to standard NBR. The short riveted body drastically reduces axial mounting depth, making it highly effective for machinery where space is strictly limited.
The bore inner wall is hard-anodized, and end-of-travel deceleration is handled by a fixed NBR bumper at each end rather than an adjustable air cushion. Because this configuration lacks the -S magnet option, it cannot directly mount AirTAC reed or electronic switches. Operating at speeds between 30-500 mm/s, the 10 mm piston rod uses an M5x0.8 female thread to connect to your load.
| Model | AirTAC SDA25X50H Compact Cylinder | 25mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø25 mm |
| Stroke | 50 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. |
| ×50 | 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).
Drives the Z-axis plunge on a printed circuit board routing gantry, where the 50 mm stroke clears the spindle while the shallow body depth keeps the axis carriage compact.
Raises and lowers a liquid filling nozzle into premade pouches, leveraging the FKM seals to withstand occasional thermal cleaning cycles and oil-laden plant air.
Pushes electronic connectors into side-by-side packaging lanes using a 245.4 N extend force, with the fixed NBR bumpers absorbing the repetitive end-stop impact.
When sizing this actuator, evaluate your force requirements carefully. Stepping down to the SDA20 reduces the 0.5 MPa push force to 157.1 N, while stepping up to the SDA32 increases it to 402.1 N. For the SDA25X50H at 0.5 MPa, the safe working load is approximately 147 N (about 60% of the 245.4 N figure), translating to a vertical lift capacity of roughly 12.5 kg with a 2:1 safety margin. Ensure your ordering essentials specify the 25 mm bore, 50 mm stroke, M5x0.8 port, FKM seal, and female rod thread.
Remember that a standard compact cylinder does not hold its position if air pressure drops or the valve is centered. The piston will drift, and the fixed bumper only decelerates the stroke near its end without acting as a lock. If your application requires position holding on air loss, you must 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, and 343.6 N push at 0.7 MPa. The theoretical maximum push force is 50 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, this specific SKU does not include the -S piston magnet, so it cannot trigger AirTAC reed or electronic switches. You would need the -S variant for position sensing, and for high-speed operations, add external shock absorbers since the fixed NBR bumpers are not adjustable.
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