The AirTAC AirTAC SDA50X90SB 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 SDA50X90SB 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 assembly significantly reduces axial mounting depth, making it highly effective for machinery where a traditional round-body unit would simply be too long. The 50 mm bore features a hard-anodized inner wall and operates at speeds between 30 and 500 mm/s.
This specific configuration includes a built-in piston magnet (S) for position detection via AirTAC reed or electronic switches, and a male M18x1.5 threaded piston rod end (B) for secure mechanical load coupling. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow the approach or utilize external shock absorbers during high-energy cycles. The unit feeds through a PT1/4 port and safely handles a vertical lift of roughly 50 kg with a 2:1 safety margin.
| Model | AirTAC SDA50X90SB 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).
Drives the folding mechanism on continuous carton packaging lines, utilizing the 90 mm stroke and male M18x1.5 rod to push corrugated flaps into position before sealing.
Actuates a routing diverter on a material handling conveyor, where the 981.7 N push force at 0.5 MPa easily redirects heavy palletized goods onto secondary tracks.
Mounts onto an injection molding cell to eject plastic parts, saving valuable axial footprint while delivering a safe 589 N working load to clear the tooling.
Selecting this 90 mm stroke model provides a safe working load of approximately 589 N (about 60% of its 981.7 N push capacity at 0.5 MPa). If your application requires less force, stepping down to the SDA40 yields 628.3 N at 0.5 MPa; conversely, scaling up to the SDA63 provides a substantial 1558.6 N at 0.5 MPa. Keep in mind that a standard double-acting cylinder like this will drift and cannot hold a load if air pressure is lost or the valve is centered—an external rod lock or pilot-operated check valve is necessary for secure positioning.
When submitting your RFQ, confirm the essential ordering parameters: a 50 mm bore, 90 mm stroke, PT1/4 porting, the integrated magnet for sensing, and the male M18x1.5 rod thread. Because the compact body is optimized for shorter strokes, verify that this 90 mm stroke fits your envelope without needing a guided cylinder to prevent side-load issues on the 20 mm rod.
Quick checklist
This 50 mm bore double-acting cylinder generates 981.7 N push and 824.7 N pull at 0.5 MPa, and 1374.4 N push and 1154.5 N pull at 0.7 MPa. The theoretical maximum push force is 200 kgf at 1.0 MPa, with an operating pressure range of 0.15-1.0 MPa.
No, the SDA50X90SB uses a fixed NBR bumper at each end to decelerate the piston near the stroke limits; it is not an adjustable air cushion. For high-speed or high-energy cycles, you should slow the approach speed or install an external shock absorber to prevent damage.
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