The AirTAC AirTAC SDA50X140 Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 140mm 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 SDA50X140 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 riveted assembly significantly reduces axial mounting depth compared to conventional round-body units, making it highly effective for tight machinery footprints. This specific 140 mm stroke configuration is a non-standard, made-to-order length that exceeds the 130 mm maximum standard stroke for this 50 mm bore.
This unit features a hard-anodized bore and a fixed NBR bumper at each end to decelerate the piston near stroke limits; it is not an adjustable air cushion. Operating at speeds of 30-500 mm/s, the cylinder uses a PT1/4 port and a 20 mm piston rod. Because this SKU lacks the -S magnet option, it cannot directly host AirTAC reed or electronic switches.
| Model | AirTAC SDA50X140 Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 140 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. |
| ×140 | 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).
Actuates routing gates on high-speed logistics conveyors where the short riveted body minimizes frame protrusion and the 140 mm stroke clears standard totes.
Folds major flaps on automated packaging lines, utilizing the 981.7 N extend force to overcome cardboard resistance without stalling.
Raises lower-tier product layers in palletizing cells; external guidance is recommended for this 140 mm stroke to prevent rod side-loading.
When sizing this actuator, consider stepping down to the SDA40, which provides 628.3 N of push force at 0.5 MPa, or moving up to the SDA63, which yields 1558.6 N at the same pressure. For the SDA50X140 specifically, the safe working load is approximately 589 N (about 60% of the 981.7 N figure at 0.5 MPa), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin. Confirm your ordering essentials: 50 mm bore, 140 mm non-standard stroke, PT1/4 port, female M10x1.5 rod thread, and no sensor magnet.
Keep in mind that a standard compact cylinder does not hold its load if air pressure is lost or the valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end rather than locking the assembly. If your application requires position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
The SDA50X140 generates 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 force is 1374.4 N. The theoretical maximum push force is 200 kgf at the 1.0 MPa operating pressure limit.
No, this specific SKU does not include the -S piston magnet, so it cannot host AirTAC reed or electronic switches. You would need to specify the -S option when ordering to enable magnetic sensing in the body grooves.
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