The AirTAC AirTAC SDA25X50SH 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 SDA25X50SH is a double-acting, single-rod compact cylinder engineered for tight axial spaces. It generates 245.4 N of push force and 206.2 N of pull force at 0.5 MPa. The riveted unibody design drastically reduces mounting depth compared to conventional round-body units, while the hard-anodized bore ensures long service life.
This specific configuration includes a built-in piston magnet (-S) for position sensing and fluororubber (-H) seals for enhanced thermal and oil resistance. End-stopping relies on a fixed NBR bumper rather than an adjustable air cushion, meaning operators should control approach speeds to manage impact energy at the stroke ends.
| Model | AirTAC SDA25X50SH 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).
Actuates the cutting head on an electronic board depaneling machine, where the short 50 mm stroke and compact body length minimize Z-axis height requirements.
Provides the 245.4 N push force required to close heated platens on pharmaceutical blister packaging lines, with FKM seals surviving elevated ambient temperatures.
Pivots a diverting arm on a logistics conveyor belt, using the integrated magnet to trigger reed or electronic switches for stroke confirmation.
When sizing this unit, evaluate your force margins carefully. Stepping down to the SDA20 reduces the 0.5 MPa push output to 157.1 N, whereas stepping up to the SDA32 increases it to 402.1 N. For the SDA25X50SH, the safe working load is approximately 147 N (about 60% of the 245.4 N figure), allowing a vertical lift of roughly 12.5 kg with a 2:1 safety margin.
Remember that a standard compact cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the piston near the end of travel and does not function as a locking brake. To hold a load securely without live pressure, you must integrate an external rod lock or a pilot-operated check valve. Confirm your ordering essentials: 25 mm bore, 50 mm stroke, M5x0.8 port, female M5x0.8 rod thread, magnet included, and FKM seals.
Quick checklist
At 0.5 MPa, the push force is 245.4 N and the pull force is 206.2 N. At 0.7 MPa, the push force is 343.6 N. The theoretical maximum push force is 50 kgf at 1.0 MPa. The operating pressure range is 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and the operational speed range spans 30-500 mm/s.
No, the SDA25X50SH uses a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. For high-speed or high-energy cycles, you should add an external shock absorber or slow down the approach speed to prevent damage.
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