The AirTAC AirTAC SDA50X20BH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 20mm 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 SDA50X20BH 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. The short riveted body significantly reduces axial mounting depth compared to round-body alternatives, conserving valuable machine footprint in tight assemblies. This specific configuration includes an FKM fluororubber seal for heightened thermal and oil resistance.
This unit features a 20 mm stroke and a robust 20 mm piston rod with a male M18x1.5 thread for secure load coupling. End-stop deceleration relies on a fixed NBR bumper rather than an adjustable cushion, meaning operators should slow the approach or utilize external shock absorbers for high-energy cycles. Because this SKU lacks the -S magnet option, it cannot support magnetic sensing.
| Model | AirTAC SDA50X20BH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 20 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. |
| ×20 | 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 folding mechanism on packaging lines to close corrugated carton flaps securely before tape application, fitting neatly into narrow machine frames.
Positions sheet metal backgauges in light fabrication presses, leveraging the 981.7 N extend force to push material stops into precise coordinates.
Actuates routing gates on beverage conveyors to sort filled PET bottles into downstream labeling stations without consuming excessive axial space.
When sizing this actuator, evaluate 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. For the current 50 mm bore, the computed safe working load is roughly 589 N (about 60% of the 981.7 N figure), translating to a vertical lift capacity of approximately 50 kg with a 2:1 safety margin. To finalize your order, confirm the 50 mm bore, 20 mm stroke, PT1/4 port, male M18x1.5 rod thread, and FKM seal. Note that a standard cylinder drifts when air pressure is lost; if your application requires strict position holding, integrate an external rod lock or 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, push is 1374.4 N and pull is 1154.5 N. The theoretical maximum push is 200 kgf at 1.0 MPa. Operating pressure ranges from 0.15 to 1.0 MPa, with a proof pressure of 1.5 MPa and a speed range of 30-500 mm/s.
No, this specific SKU does not include a piston magnet, so it cannot support reed or electronic switches. The -S variant adds the required magnet for sensing. Additionally, end-stop deceleration is handled by a fixed NBR bumper, not an adjustable air cushion, so external shock absorbers are recommended for high-speed operations.
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