The AirTAC AirTAC SDA50X35S Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 35mm 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 SDA50X35S 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 body design integrates 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 makes it exceptionally suited for machinery where tight footprint constraints are critical.
This specific configuration includes a built-in piston magnet (-S) for direct mounting of AirTAC reed or electronic switches along the body grooves. The unit features a 20 mm piston rod, a PT1/4 port, and a female M10x1.5 rod-end thread. End-stopping relies on a fixed NBR bumper rather than an adjustable air cushion, meaning external shock absorbers should be added for high-energy cycling.
| Model | AirTAC SDA50X35S Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 35 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. |
| ×35 | 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, utilizing the 981.7 N push force to snap heavy cardboard flaps into position securely before taping.
Actuates routing gates on a conveyor system, where the short 35 mm stroke and compact footprint fit neatly between adjacent roller sections.
Provides a secondary ejection push for molded plastic parts, using the 20 mm rod to clear the tooling face without requiring extensive machine clearances.
When sizing this actuator, evaluate your force requirements carefully. Stepping down to the SDA40 yields 628.3 N of push at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N. The SDA50X35S offers a safe working load of roughly 589 N (about 60% of its 981.7 N capacity) and can vertically lift approximately 50 kg with a 2:1 safety margin. To confirm your ordering essentials: specify the 50 mm bore, 35 mm stroke, PT1/4 port, female M10x1.5 rod thread, and the required -S magnet. Note that a standard cylinder drifts when air pressure is lost or the valve is centered; if your application demands position holding under load, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting cylinder generates 981.7 N push and 824.7 N pull at 0.5 MPa, increasing to 1374.4 N push and 1154.5 N pull at 0.7 MPa. The theoretical maximum push is 200 kgf at 1.0 MPa. It operates between 0.15 and 1.0 MPa, with 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. It is not an adjustable air cushion, nor does it function as 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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