The AirTAC AirTAC SDA50X75SB Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 75mm 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 SDA50X75SB 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 compared to conventional round-body units, making it highly effective for conserving machinery footprint in tight layouts. The unit includes a built-in piston magnet for position sensing and a male M18x1.5 threaded rod end.
The bore features a hard-anodized inner wall paired with a two-way piston seal, while the integrated body grooves accept AirTAC reed or electronic switches for precise end-of-stroke detection. End-stop deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning operators should slow the approach speed or utilize external shock absorbers when cycling heavy loads at high velocities.
| Model | AirTAC SDA50X75SB Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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. |
| ×75 | 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 packaging lines, utilizing the 981.7 N push force to snap heavy corrugated cardboard flaps into position rapidly.
Actuates routing gates on 50 kg material handling conveyors, where the 75 mm stroke and male M18x1.5 rod provide durable linkage to the diverter arm.
Mounts directly onto injection molding platens to eject dense plastic parts, saving axial depth while the internal magnet triggers reed switches for precise cycle counting.
Selecting this 50 mm bore provides a robust middle ground: it steps up from the SDA40 which provides 628.3 N of push at 0.5 MPa, yet remains smaller than the SDA63 which outputs 1558.6 N. For this specific configuration, 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. When ordering, confirm the 75 mm stroke, PT1/4 port, the -S magnet requirement, and the -B male M18x1.5 rod thread. Keep in mind a standard cylinder drifts when air pressure is lost or the valve is centered, so an external rod lock or pilot-operated check valve is required to hold a load securely in place.
Quick checklist
At 0.5 MPa, this 50 mm bore cylinder provides 981.7 N push and 824.7 N pull. 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. Operating pressure ranges from 0.15 to 1.0 MPa, with a speed range of 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion or a locking brake. For high-energy cycles, add external shock absorbers. The built-in -S magnet works with AirTAC reed or electronic switches mounted in the body grooves, and the -B option provides a male M18x1.5 thread on the 20 mm rod.
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