The AirTAC AirTAC SDA50X25SBH 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 SDA50X25SBH is a double-acting single-rod compact cylinder engineered to deliver 981.7 N of push force and 824.7 N of pull force at 0.5 MPa. This specific configuration includes a built-in piston magnet (-S) for position sensing, a male M18x1.5 piston rod thread (-B), and high-temperature fluororubber (FKM) seals (-H). Driven by a 20 mm piston rod and PT1/4 air ports, it is built for rigorous actuation tasks.
Its riveted body design drastically reduces axial mounting depth compared to traditional round-body cylinders, saving valuable machine footprint. Instead of an adjustable air cushion, the internal end stops rely on a fixed NBR bumper to decelerate the piston near stroke end. For high-speed cycling, operators should add an external shock absorber or slow the approach, as this bumper cannot be field-tuned.
| Model | AirTAC SDA50X25SBH 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).
Secures heavy cast iron engine blocks onto machining centers. The 981.7 N push force easily holds the casting, while the FKM seals resist exposure to way oils and cutting fluids.
Folds corrugated cardboard flaps on high-speed packaging lines. The short 25 mm stroke and compact riveted body fit neatly within tight conveyor frame clearances.
Raises and lowers lightweight material handling gates. The male M18x1.5 rod end provides a robust mechanical coupling for the load bracket, handling a 50 kg vertical lift safely.
When sizing this 50 mm bore actuator, stepping down to the SDA40 yields 628.3 N of push at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N. At 981.7 N, this model offers a safe working load of roughly 589 N (about 60% of the 0.5 MPa figure) and can vertically lift approximately 50 kg with a 2:1 safety margin. To confirm your ordering essentials: specify the 50 mm bore, 25 mm stroke, PT1/4 port, male M18x1.5 rod thread, FKM seal option, and the integrated magnet.
Keep in mind 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 NBR bumper only decelerates it near the stroke end rather than locking it. If your application must maintain a load without live pressure, integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 50 mm bore double-acting cylinder generates 981.7 N push and 824.7 N pull at 0.5 MPa, increasing to 1374.4 N push and 1154.5 N pull at 0.7 MPa. The theoretical maximum push force is 200 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
Damping is handled by a fixed NBR bumper at each end that decelerates the piston; it is not an adjustable air cushion. Because this model includes the -S magnet, you can mount AirTAC magnetic reed or electronic switches directly into the body grooves for precise position detection.
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