The AirTAC AirTAC SDA50X90S Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 90mm 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 SDA50X90S 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 designs. This makes it exceptionally suited for machinery where footprint minimization is 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 50 mm bore utilizes a PT1/4 port and a 20 mm piston rod. End-stop deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning high-energy cycles may require external shock absorbers to prevent impact damage.
| Model | AirTAC SDA50X90S Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 90 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. |
| ×90 | 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).
Pushes medium-weight cartons at 90 mm onto secondary packaging lines using the 981.7 N extend force, fitting neatly within tight transfer station frames.
Secures aluminum castings inside machining centers; the 50 kg vertical lift capacity provides reliable holding without overwhelming the part geometry.
Actuates a 90 mm lifting flap on automated pallet dispensers, where the short riveted body saves critical vertical clearance beneath the conveyor bed.
When sizing this unit, consider stepping down to the SDA40, which yields 628.3 N of push at 0.5 MPa, or moving up to the SDA63, which provides 1558.6 N at the same pressure. For the SDA50X90S, the safe working load is approximately 589 N (about 60% of the 981.7 N figure), translating to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin. Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered; the fixed bumper only decelerates the stroke near its end and does not function as a locking brake. If your application demands strict position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve. To order, confirm the 50 mm bore, 90 mm stroke, PT1/4 port, female rod-end thread (M10x1.5), and the required magnetic sensor option.
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 force is 1374.4 N and the pull force is 1154.5 N. The theoretical maximum push force is 200 kgf at the maximum operating pressure of 1.0 MPa.
No, the piston will drift if air is lost or the valve is centered; an external rod lock or pilot-operated check valve is required for holding. Additionally, it uses a fixed NBR bumper to decelerate the stroke end, which is not an adjustable air cushion, so high-speed applications may need an external shock absorber.
Genuine AirTAC parts produced by AirTAC factory.
Covers non-human-caused product damage.
Standard models usually ship in 3-4 days.
Most inquiries answered within 7-8 hours.
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.