The AirTAC AirTAC SDA50X55 Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 55mm 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 SDA50X55 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 merges the barrel, rear cover, piston and rod into a highly shortened unit, drastically reducing axial mounting depth where a conventional round-body actuator would be too long. The 50 mm bore features a hard-anodized inner wall and a two-way piston seal for reliable friction-free motion.
This specific configuration uses a 20 mm piston rod and PT1/4 porting, accepting a female M10x1.5 rod-end thread. Stroke termination relies on a fixed NBR bumper at each end rather than an adjustable air cushion, meaning high-energy cycles may require an external shock absorber to prevent impact damage. Because this SKU lacks the S option, it has no piston magnet and cannot support position sensing.
| Model | AirTAC SDA50X55 Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 55 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. |
| ×55 | 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 a routing flap on a logistics sorting line, using the 55 mm stroke to push parcels weighing up to 50 kg smoothly into secondary chutes.
Drives the top folding mechanism on a continuous box taping machine, where the compact riveted body minimizes frame interference.
Provides secondary part ejection from a plastic molding fixture, applying 981.7 N of extend force to free cooled components from the cavity.
When sizing this model, compare its 981.7 N push at 0.5 MPa against adjacent bores: the SDA40 provides 628.3 N if your load is lighter, while the SDA63 offers 1558.6 N for heavier demands. Based on the 981.7 N output, the safe working load is approximately 589 N (about 60 percent of capacity), translating to a vertical lift capability of roughly 50 kg with a 2:1 safety margin. To finalize your order, confirm the 50 mm bore, 55 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the absence of a magnet.
Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the directional valve is centered. The fixed NBR bumper only decelerates the piston near the stroke limits and does not function as a locking brake. If your application must hold a vertical load without live pressure, integrate an external rod lock or a pilot-operated check valve into the pneumatic circuit.
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, the push is 1374.4 N and the 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 speed of 30-500 mm/s.
No, it uses a fixed NBR bumper at each end to decelerate the stroke, which is not an adjustable air cushion. Additionally, this specific SKU lacks the S magnet option, so it cannot support reed or electronic switches; you would need the SDA50X55S variant for position feedback.
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