The AirTAC AirTAC SDA50X30SH 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 SDA50X30SH is a double-acting, single-rod compact cylinder engineered to deliver a robust 981.7 N push force at 0.5 MPa. Its short riveted body design significantly reduces axial mounting depth, making it ideal for machinery where a standard round-body unit would simply not fit. The bore is hard-anodized and utilizes a two-way piston seal for reliable operation.
This specific configuration includes a built-in piston magnet (-S) for position detection via AirTAC reed or electronic switches, and fluororubber (FKM) seals (-H) for enhanced thermal and oil resistance. End-stopping is handled by a fixed NBR bumper that decelerates the piston near stroke end; it is not an adjustable air cushion. With a 50 mm bore and 30 mm stroke, the unit operates via PT1/4 ports and a 20 mm rod.
| Model | AirTAC SDA50X30SH 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).
Secures heavy aluminum castings onto a CNC machining center bed, utilizing the 981.7 N extend force to hold parts rigidly against cutting forces.
Actuates the release gate on an automated wooden pallet magazine, where the short 30 mm stroke and compact footprint prevent interference with the conveyor frame.
Functions as a mid-travel stopping pin for a 50 kg materials lift, requiring the FKM seals to withstand elevated ambient temperatures near heat-shrink tunnels.
When sizing this actuator, stepping down to the SDA40 yields 628.3 N of push force at 0.5 MPa, while stepping up to the SDA63 provides 1558.6 N. For the SDA50X30SH, the safe working load is approximately 589 N (about 60% of the 981.7 N figure at 0.5 MPa), which translates to a vertical lift capacity of roughly 50 kg with a 2:1 safety margin. Keep in mind that a standard compact cylinder does not hold its load if air pressure is lost or the valve is centered—the piston will drift, and the fixed bumper only decelerates near the end of travel. To maintain a held load, an external rod lock or pilot-operated check valve is required. Confirm your ordering essentials: 50 mm bore, 30 mm stroke, PT1/4 port, female M10x1.5 rod thread, plus the S magnet and H FKM seal options.
Quick checklist
This 50 mm bore double-acting cylinder provides 981.7 N push and 824.7 N pull at 0.5 MPa, and 1374.4 N push at 0.7 MPa. The theoretical maximum push force 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.
No, the piston will drift if air pressure is lost or the directional valve is centered. The fixed NBR bumper only decelerates the piston near the stroke end and does not act as a brake. For vertical load holding, you must install an external rod lock or a pilot-operated check valve.
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