The AirTAC AirTAC SDA50X50SB Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 50mm 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 SDA50X50SB 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. Its riveted body design significantly reduces axial mounting depth compared to traditional round-body units, making it highly effective for machinery where space footprint is critical. The unit includes a built-in piston magnet for position sensing.
This specific configuration features a 50 mm bore, a 50 mm stroke, and a robust Ø20 mm piston rod. The -B option provides a male M18x1.5 threaded rod end for secure load coupling, while the PT1/4 port manages air supply. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable cushion, meaning operators should slow the approach or add external shock absorbers for high-energy loads.
| Model | AirTAC SDA50X50SB Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 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. |
| ×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).
Pushes medium-weight cartons off a main sorting line using the 981.7 N extend force, with the male M18x1.5 rod threaded directly into the diverter arm.
Actuates a gripper jaw to secure boxed goods during pallet loading, utilizing the 824.7 N retract force to hold the payload securely against the fixture.
Ejects formed plastic parts from a mold cavity, where the short riveted body minimizes axial depth behind the stationary platen.
When sizing this actuator, consider stepping down to the SDA40, which provides 628.3 N of push at 0.5 MPa, or moving up to the SDA63, which yields 1558.6 N at the same pressure. 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 confirm your ordering essentials: specify the 50 mm bore, 50 mm stroke, PT1/4 port, the -S magnet for reed or electronic switches, and the -B male M18x1.5 rod thread.
Keep in mind that a standard compact cylinder does not hold its position if air pressure is lost or the valve is centered. The piston will drift, and the fixed NBR bumper only decelerates the stroke near its end without acting as a lock or brake. If your application requires a held load without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting cylinder generates 981.7 N push and 824.7 N pull at 0.5 MPa, and 1374.4 N push at 0.7 MPa. The theoretical maximum push force is 200 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion; high-speed applications require external shock absorption. The built-in -S magnet allows you to mount AirTAC reed or electronic switches directly into the body grooves for position detection.
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