The AirTAC AirTAC SDA25X50SB 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 SDA25X50SB is a double-acting single-rod compact cylinder engineered to deliver a push force of 245.4 N and a pull force of 206.2 N at 0.5 MPa. Its riveted body design significantly reduces axial mounting depth compared to conventional round-body units, making it highly effective for machinery where space savings are critical. The bore is hard-anodized and utilizes a two-way piston seal for reliable operation.
This specific configuration includes a built-in piston magnet (-S) for position detection and a male-thread piston rod end (-B) sized at M8x1.25 for secure load coupling. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow the approach speed or utilize external shock absorbers for high-energy loads. The air connection is an M5x0.8 port.
| Model | AirTAC SDA25X50SB 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).
Cycles a drill spindle guard on a printed circuit board routing machine, utilizing the 50mm stroke and male M8 rod to clear the work area quickly during panel transfers.
Drives a mechanical tucker blade on a case erector to fold minor flaps prior to tape sealing, fitting neatly within the narrow side frame of the packaging line.
Actuates a routing paddle at a logistics merge junction, pushing lightweight totes at speeds up to 500 mm/s with position feedback via a reed or electronic switch.
When sizing this unit, stepping down to the SDA20 bore provides 157.1 N of push force at 0.5 MPa, while stepping up to the SDA32 bore yields 402.1 N at the same pressure. A practical safe working load for this 25mm bore 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. To finalize your order, confirm the 25mm bore, 50mm stroke, M5x0.8 port, male M8x1.25 rod thread, and the integrated magnet. Keep in mind that a standard compact cylinder drifts when air pressure is lost or a valve is centered; the fixed bumper only decelerates the stroke end and does not function as a locking brake. If your application must hold a load without live pressure, incorporate an external rod lock or a pilot-operated check valve.
Quick checklist
This 25mm bore double-acting cylinder provides 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 and the pull force is 288.6 N. The theoretical maximum push force is 50 kgf at 1.0 MPa. It operates within a pressure range of 0.15-1.0 MPa, handles speeds of 30-500 mm/s, and functions in temperatures from -20 to +70 C.
No, it uses a fixed NBR bumper at each end to decelerate the stroke end, which is not a field-adjustable air cushion. For high-speed or high-energy cycles, you should add an external shock absorber. Because this unit includes the -S option, it has a built-in piston magnet designed to trigger AirTAC magnetic reed or electronic switches mounted in the body grooves.
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