The AirTAC AirTAC SDA50X50BH 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 SDA50X50BH is a double-acting single-rod compact cylinder engineered for tight axial mounting spaces. It delivers a robust 981.7 N push force at 0.5 MPa, utilizing a hard-anodized bore and a two-way piston seal within a short riveted body. This specific configuration includes a male M18x1.5 threaded piston rod and fluororubber (FKM) seals for enhanced thermal and oil resistance.
Instead of an adjustable air cushion, the unit relies on a fixed NBR bumper at each end to decelerate the stroke. Because this SKU lacks the -S magnet option, it cannot support magnetic reed or electronic switches. Operating at speeds between 30-500 mm/s, it provides a safe working load of roughly 589 N, translating to a vertical lift capacity of about 50 kg with a 2:1 safety margin.
| Model | AirTAC SDA50X50BH 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 push force easily overcomes carton resistance and the FKM seals withstand warm packaging environments.
Secures heavy cast iron blocks inside machining centers; the male M18x1.5 rod threads directly into custom tooling clamps, providing a solid 50 kg vertical holding margin.
Actuates routing gates on parcel conveyors, taking advantage of the short riveted body to fit within tight 50 mm transfer zones without extending into adjacent lanes.
When sizing this actuator, evaluate your force requirements carefully. Stepping down to the SDA40 reduces the 0.5 MPa push capacity to 628.3 N, while moving up to the SDA63 increases it significantly to 1558.6 N. Ensure your ordering essentials match this exact configuration: 50 mm bore, 50 mm stroke, PT1/4 port, male M18x1.5 rod thread, and FKM seals.
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. The fixed NBR bumper only decelerates the load near the stroke end and acts as neither a lock nor a brake. If your application demands position holding without live pressure, you must integrate an external rod lock or a pilot-operated check valve.
Quick checklist
This 50 mm bore double-acting cylinder generates a push force of 981.7 N and a pull force of 824.7 N at 0.5 MPa. 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.
No, this specific SKU lacks the -S magnet so it cannot accept reed or electronic switches. Additionally, it uses a fixed NBR bumper at each end rather than an adjustable air cushion; for high kinetic energy loads, you should slow the approach speed or add an external shock absorber.
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