The AirTAC AirTAC SDA50X50SN 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 SDA50X50SN is a double-acting, single-rod compact cylinder engineered to deliver a push force of 981.7 N and a pull force of 824.7 N at 0.5 MPa. Its short riveted body design drastically reduces axial mounting depth compared to traditional round-body units, saving valuable machine footprint in tight assemblies. The bore is hard-anodized and utilizes a two-way piston seal for reliable performance across a 30-500 mm/s speed range.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves, enabling precise end-of-stroke detection. The unit features a 20 mm piston rod and a PT1/4 port. End-stop deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be added for high-energy cycles.
| Model | AirTAC SDA50X50SN 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).
Executes mid-stroke routing of 20 kg cartons on a logistics sorting line where the 981.7 N push force easily overcomes side friction without requiring a larger profile cylinder.
Deploys a 50 mm stroke to tuck corrugated flaps on a case erector, taking advantage of the short riveted body to fit within narrow vertical frame cavities.
Raises a 45 kg machining fixture between processing stations, relying on the built-in magnet to trigger solid-state sensors that confirm the exact 50 mm elevation.
When sizing this 50 mm bore actuator, consider stepping down to the SDA40, which provides 628.3 N of push force at 0.5 MPa, or stepping up to the SDA63, which yields 1558.6 N at the same pressure. For the SDA50X50SN, the safe working load is approximately 589 N (about 60% of the 981.7 N figure), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin. Keep in mind that a standard compact cylinder will drift and cannot hold a load if air pressure is lost or the valve is centered; maintaining vertical loads requires an external rod lock or a pilot-operated check valve. To finalize your order, confirm the 50 mm bore, 50 mm stroke, PT1/4 port, female rod-end thread (M10x1.5), and the required magnetic sensor option.
Quick checklist
At 0.5 MPa, this double-acting cylinder provides 981.7 N of push force and 824.7 N of pull force. At 0.7 MPa, the push increases to 1374.4 N. The theoretical maximum push is 200 kgf at 1.0 MPa, which is the maximum operating pressure.
No, it uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits. It is not an adjustable air cushion, nor is it a locking brake. For high-speed or high-energy loads, you should slow the approach speed or install an external shock absorber.
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