The AirTAC AirTAC SDA50X150SH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 150mm 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 SDA50X150SH is a double-acting, single-rod compact cylinder engineered around a 50mm bore. It generates 981.7 N of push force and 824.7 N of pull force at 0.5 MPa, yielding a safe working load of roughly 589 N (about 60% of the 0.5 MPa push figure) and a vertical lift capacity near 50 kg with a 2:1 safety margin. The riveted unibody design significantly reduces axial mounting depth compared to conventional round-body units, saving valuable machine footprint in tight assemblies.
This specific configuration includes a 150mm stroke, which exceeds the 130mm standard maximum for this bore size, making it a non-standard, made-to-order item. It carries the -S option for a built-in piston magnet compatible with AirTAC reed or electronic switches, and the -H option for fluororubber (FKM) seals for enhanced thermal and oil resistance. The unit uses a fixed NBR bumper at each end to decelerate the stroke, and the Ø20mm piston rod features a female M10x1.5 thread.
| Model | AirTAC SDA50X150SH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 150 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. |
| ×150 | 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 mechanical flap folders on high-speed corrugated box palletizing lines, utilizing the 981.7 N push force to square heavy cardboard before stretch wrapping.
Actuates a diverter gate on a beverage filling conveyor, where the FKM seals withstand washdown chemicals and the 150mm stroke fully clears the lane for 2-liter containers.
Raises a 45 kg automotive alternator into a robotic welding fixture, operating well within the 50 kg vertical lift capacity with a 2:1 safety margin.
When sizing this actuator, evaluate your force requirements carefully: stepping down to the SDA40 yields 628.3 N of push at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N at the same pressure. This 50mm bore strikes a balance for medium-duty tasks. Because the 150mm stroke is non-standard for this compact body, ensure your assembly can accommodate the extended length, and consider a guided cylinder if the application involves long-stroke side loading.
Keep in mind that a standard compact cylinder does not hold its position if air pressure is lost or the valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end rather than acting as a lock. For applications requiring suspended load holding, you must integrate an external rod lock or a pilot-operated check valve. To order, confirm the 50mm bore, 150mm stroke, PT1/4 port, -S magnet, -H FKM seals, and female M10x1.5 rod thread.
Quick checklist
At 0.5 MPa, this 50mm bore cylinder provides 981.7 N of push force and 824.7 N of pull force. At 0.7 MPa, the push increases to 1374.4 N. The theoretical maximum push is 200 kgf at the maximum operating pressure of 1.0 MPa.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not an adjustable air cushion. If your application runs at high speeds or involves heavy energy, add an external shock absorber. Furthermore, the cylinder does not hold its load on air loss; you need an external rod lock or pilot-operated check valve for position holding.
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