The AirTAC AirTAC SDA50X25S Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 25mm stroke, PT1/4 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA50X25S is a double-acting, single-rod compact cylinder engineered to deliver a robust 981.7 N push force at 0.5 MPa. Its riveted assembly merges the barrel, rear cover, piston, and rod into an ultra-short unit, drastically reducing axial footprint where a conventional round-body actuator cannot fit. The hard-anodized bore ensures smooth low-friction travel across the 25 mm stroke.
Because this unit includes the S option, a built-in piston magnet enables position detection via an AirTAC reed or electronic switch seated in the body grooves. End-of-travel deceleration is handled by a fixed NBR bumper rather than an adjustable cushion, meaning external shock absorbers should be specified for high-energy cycling. The 20 mm rod terminates in a standard female M10x1.5 thread, ensuring straightforward load coupling.
| Model | AirTAC SDA50X25S Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 25 mm |
| Acting type | Double acting |
| Port size | PT1/4 |
| Rod end thread | M10×1.5 female / M18×1.5 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 | 982 N | 825 N |
| 0.7 MPa | 1374 N | — |
| Max (@1.0 MPa) | 200 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. |
|---|---|
| 50 | Bore size in mm. |
| ×25 | 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 vertical plunge of a spindle on a printed circuit board routing machine, utilizing the short 25 mm stroke and 981.7 N force to cleanly cut substrate panels.
Folds minor corrugated carton flaps prior to tape sealing on a packaging line, where the compact riveted body saves valuable axial depth in tight conveyor transitions.
Applies downward pressure to set rivets in sheet metal assemblies, using the built-in S magnet to trigger an electronic switch for precise stroke-end confirmation.
When sizing this 50 mm bore actuator, compare its 981.7 N push at 0.5 MPa against adjacent bores: stepping down to the SDA40 yields 628.3 N, while stepping up to the SDA63 provides 1558.6 N. Based on the 981.7 N output, the safe working load is approximately 589 N (60% capacity), translating to a vertical lift capability of roughly 50 kg with a 2:1 safety margin. To finalize your order, confirm the 50 mm bore, 25 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the required S magnet for sensing. Remember that a standard compact cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only slows the piston near stroke end and will not lock the load. To hold a vertical load safely without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
At 0.5 MPa, the push force is 981.7 N and the pull force is 824.7 N. At 0.7 MPa, the push force is 1374.4 N. The theoretical maximum push force is 200 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a speed range of 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. For high-speed applications, you should add external shock absorbers. The built-in magnet allows you to mount an AirTAC reed or electronic switch directly into the body grooves for position feedback.
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