The AirTAC AirTAC SDA50X65SB Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 65mm 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 SDA50X65SB 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. Its riveted assembly merges the barrel, rear cover, piston, and rod into a highly space-efficient unit, drastically reducing axial mounting depth compared to conventional round-body actuators. This specific configuration includes a built-in piston magnet (-S) for position sensing and a male-thread piston rod (-B).
Driven by a 50 mm bore and a 65 mm stroke, this model uses a PT1/4 air port and a robust 20 mm rod. End-of-stroke deceleration relies on a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require an external shock absorber to prevent impact damage. The integrated magnet allows you to mount AirTAC reed or electronic switches directly into the body grooves for precise positioning feedback.
| Model | AirTAC SDA50X65SB Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 65 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. |
| ×65 | 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, utilizing the 981.7 N push force to reliably redirect heavy parcels onto secondary chutes.
Drives a mechanical arm to fold corrugated box flaps prior to sealing, where the 65 mm stroke and male M18x1.5 rod end secure the folding bracket.
Functions as a height stop for incoming pallets on a vertical lift table, absorbing contact via the fixed NBR bumper while the sensor magnet confirms positioning.
Selecting this 50 mm bore actuator provides a theoretical maximum push of 200 kgf at 1.0 MPa. If you need to step down in force, the SDA40 offers 628.3 N of push at 0.5 MPa; stepping up, the SDA63 yields 1558.6 N at the same pressure. For this 65 mm stroke configuration, a safe working load is approximately 589 N (about 60% of the 981.7 N figure), which translates to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin. Confirm your ordering essentials: 50 mm bore, 65 mm stroke, PT1/4 port, -S magnet, and -B male M18x1.5 rod thread. Note that a standard SDA will drift and cannot hold a load if air pressure is lost or the valve is centered—use an external rod lock or pilot-operated check valve for fail-safe positioning.
Quick checklist
At 0.5 MPa, this 50 mm bore cylinder provides 981.7 N of push force and 824.7 N of pull force. At 0.7 MPa, push increases to 1374.4 N and pull to 1154.5 N. The theoretical maximum push is 200 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, with a proof pressure of 1.5 MPa, and supports a speed range of 30-500 mm/s.
No, it uses a fixed NBR bumper at each end to decelerate the piston near stroke completion, which is not a field-adjustable air cushion. Additionally, it does not hold its load if air pressure drops or the valve is centered; the piston will drift. For load holding, you must install an external rod lock or a pilot-operated check valve.
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