The AirTAC AirTAC SDA50X30SN Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 30mm 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 SDA50X30SN 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, and piston into a highly shortened unit, significantly reducing axial mounting depth compared to conventional round-body designs. This space efficiency makes it exceptionally well-suited for tight machine footprints.
This 50 mm bore model features a 20 mm piston rod and PT1/4 air ports, providing a reliable interface for pneumatic supply. The integrated -S piston magnet enables position detection via AirTAC reed or electronic switches fitted into the body grooves. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, ensuring consistent stopping without manual tuning.
| Model | AirTAC SDA50X30SN Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 30 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. |
| ×30 | 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 belt using its 981.7 N extend force, with the short riveted body fitting neatly within the conveyor frame depth.
Actuates a gripper arm to secure boxes during pallet loading, relying on the 20 mm piston rod to handle the 50 kg vertical lift capacity safely.
Ejects formed plastic parts from a mold cavity, where the fixed NBR bumper absorbs the end-stop impact and the -S magnet confirms part release.
When sizing this actuator, evaluate your force requirements against adjacent bores: 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. For the SDA50X30SN itself, the safe working load is approximately 589 N (about 60% of the 981.7 N figure at 0.5 MPa), which translates to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin.
Confirm your ordering essentials: a 50 mm bore, 30 mm stroke, PT1/4 port, and the built-in -S magnet. Note that this unit uses a fixed NBR bumper to decelerate the stroke end; it is not an adjustable cushion. Furthermore, a standard compact cylinder cannot hold a load if air pressure is lost or the valve is centered—the piston will drift. If your application demands strict position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 50 mm bore double-acting cylinder provides a push force of 981.7 N and a pull force of 824.7 N at 0.5 MPa. At 0.7 MPa, the push increases to 1374.4 N. The theoretical maximum push is 200 kgf at the maximum operating pressure of 1.0 MPa.
No, a standard SDA cylinder does not hold its position or load when air is lost or the valve is centered. The piston will drift, and the fixed NBR bumper only decelerates it near the stroke end—it is not a lock or brake. An external rod lock or pilot-operated check valve is required for load holding.
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