The AirTAC AirTAC SDA50X80SH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 80mm 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 SDA50X80SH 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 significantly reduces axial mounting depth compared to conventional round-body units, making it highly effective for machinery where space footprint is restricted. The unit includes a 20 mm piston rod and PT1/4 air ports.
This specific configuration includes an -S piston magnet for direct mounting of AirTAC reed or electronic switches along the body grooves, plus an -H fluororubber (FKM) seal variant for enhanced thermal and oil resistance. End-stopping relies on a fixed NBR bumper to decelerate the piston, meaning it is not an adjustable air cushion. Operating speed spans 30-500 mm/s.
| Model | AirTAC SDA50X80SH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 80 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. |
| ×80 | 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 folding arms on high-speed palletizing lines where the 981.7 N push force easily overcomes carton stiffness and the FKM seals resist ambient heat.
Positions back-gauge fingers on small metal forming presses, utilizing the 20 mm rod and short 80 mm stroke to maintain accurate sheet metal alignment without protruding deeply.
Actuates routing gates on beverage conveyors to shift bottles between lanes, benefiting from the compact riveted body to fit within tight transfer frame clearances.
When sizing this 50 mm bore, evaluate your neighbours: stepping down to the SDA40 yields 628.3 N push at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N. For the SDA50X80SH, the computed safe working load is roughly 589 N (about 60% of the 981.7 N figure), translating to a vertical lift capacity of approximately 50 kg with a 2:1 safety margin. Confirm your ordering essentials: 50 mm bore, 80 mm stroke, PT1/4 port, female M10x1.5 rod thread, -S magnet, and -H FKM seals.
Remember that a standard compact cylinder does not hold its position if air pressure drops or the valve centers. The piston will drift, and the fixed rubber bumper only decelerates near the stroke end rather than locking the load. If your application requires vertical position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This double-acting 50 mm bore cylinder generates 981.7 N push and 824.7 N pull at 0.5 MPa, increasing to 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 a proof pressure of 1.5 MPa.
It uses a fixed NBR bumper at each end to decelerate the piston, which is not a field-adjustable air cushion; for high-speed cycles you should add an external shock absorber. Additionally, it does not lock its load on air loss, so an external rod lock or pilot-operated check valve is required for vertical holding.
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