The AirTAC AirTAC SDA50X30SB Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 30mm 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 SDA50X30SB is a double-acting, single-rod compact cylinder engineered to deliver a robust 981.7 N push force at 0.5 MPa. Its riveted body design integrates the barrel, rear cover, piston, and rod into a highly unified assembly, drastically reducing axial mounting depth compared to conventional round-body units. This space-saving footprint makes it exceptionally well-suited for tight machine layouts.
This specific configuration includes a built-in piston magnet (-S) for direct compatibility with AirTAC reed or electronic switches, fitting neatly into the body's sensor grooves. The -B option equips the 20 mm rod with a male M18x1.5 thread for secure mechanical coupling. End-stopping is handled by a fixed NBR bumper, which decelerates the piston near stroke limits rather than acting as a lock or adjustable air cushion.
| Model | AirTAC SDA50X30SB Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 30 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. |
| ×30 | 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 onto secondary packaging lines using 981.7 N of extend force, fitting neatly into tight conveyor transfer frames.
Secures aluminum engine blocks during machining via the male M18x1.5 rod thread, providing repeatable holding without exceeding 0.7 MPa.
Raises 50 kg workpiece pallets vertically between processing cells, relying on the 20 mm rod to resist deflection under the rated load.
Selecting this 50 mm bore provides a theoretical safe working load of roughly 589 N (about 60% of the 981.7 N push at 0.5 MPa), translating to a vertical lift capacity of approximately 50 kg with a 2:1 safety margin. If your application requires less force, the SDA40 offers 628.3 N at 0.5 MPa; stepping up to the SDA63 yields 1558.6 N at 0.5 MPa for heavier demands. 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 end, so an external rod lock or pilot-operated check valve is required to hold a load securely.
When ordering, confirm this exact configuration: 50 mm bore, 30 mm stroke, PT1/4 port, built-in magnet (S), and male M18x1.5 piston rod thread (B). Operating speed ranges from 30-500 mm/s, and maximum standard stroke for this bore is 130 mm.
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, push is 1374.4 N and pull is 1154.5 N. The theoretical maximum push force is 200 kgf at the 1.0 MPa operating pressure limit.
No, the SDA50X30SB uses a fixed NBR bumper at each end to decelerate the piston near the stroke end; it is not an adjustable air cushion. For high-speed or high-energy cycles, you should slow the approach speed or add an external shock absorber.
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