The AirTAC AirTAC SDA50X50SH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 50mm 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 SDA50X50SH is a double-acting single-rod compact cylinder engineered for tight axial footprints. Its riveted assembly minimizes overall length compared to round-body units, yielding 981.7 N of push force at 0.5 MPa. This specific configuration includes an FKM fluororubber seal for enhanced thermal and oil resistance, operating reliably across a 30-500 mm/s speed range.
A built-in piston magnet (-S) interfaces directly with AirTAC reed or electronic switches via the body grooves. The 20 mm piston rod features a female M10x1.5 thread end, while the PT1/4 ports supply air to both chambers. End-stopping relies on a fixed NBR bumper that decelerates the mass near stroke completion rather than providing an adjustable air cushion.
| Model | AirTAC SDA50X50SH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 50 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. |
| ×50 | 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 cardboard flap folders on high-speed palletizing lines where the 981.7 N output tucks heavy corrugated flaps prior to strapping.
Actuates routing gates on beverage conveyors, using the 50 mm stroke to shift bottle lanes rapidly without consuming excessive frame depth.
Mounts inside injection molding cells to eject plastic parts, leveraging the FKM seals to withstand ambient heat and oil mist near the press.
When sizing this unit, evaluate your neighbours: the SDA40 provides 628.3 N push at 0.5 MPa for lighter duties, while the SDA63 steps up to 1558.6 N for heavier loads. For the SDA50X50SH, the safe working load is approximately 589 N (about 60% of the 981.7 N figure), translating to a vertical lift capacity near 50 kg with a 2:1 safety margin. Confirm your essentials: 50 mm bore, 50 mm stroke, PT1/4 port, female M10x1.5 rod thread, the -S magnet, and -H FKM seals. Note that a plain cylinder drifts when air is lost; the fixed bumper only decelerates near stroke end and does not act as a lock. To hold a load without live pressure, install an external rod lock or 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 at 0.7 MPa. The theoretical maximum push is 200 kgf at 1.0 MPa, with a proof pressure of 1.5 MPa.
No adjustable air cushion exists; a fixed NBR bumper absorbs impact at the stroke extremes. For high-energy cycles, add an external shock absorber. The cylinder will drift if air pressure drops, so fit an external rod lock or pilot-operated check valve if you need to maintain a load position.
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