The AirTAC SDA50X75BH Compact Cylinder | 50mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø50mm bore and 75mm 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 SDA50X75BH 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 short, riveted body assembly integrates the barrel, rear cover, and piston to drastically reduce axial mounting depth compared to standard round-body units, making it highly effective for tight machine footprints. The bore is hard-anodized, and the piston relies on a two-way seal for reliable actuation.
This specific configuration features a 75 mm stroke and a 20 mm piston rod with a male M18x1.5 thread end for direct load coupling. It includes the -H fluororubber (FKM) seal option for enhanced thermal and oil resistance. Instead of an adjustable air cushion, the cylinder uses a fixed NBR bumper at each end to decelerate the stroke. Note that because this SKU lacks the -S magnet code, it cannot support magnetic reed or electronic switches.
| Model | AirTAC SDA50X75BH Compact Cylinder | 50mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø50 mm |
| Stroke | 75 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. |
| ×75 | 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 cardboard flap folding arms on high-speed palletizing lines where the 981.7 N push force easily overcomes carton resistance and the short body conserves floor footprint.
Secures heavy cast iron engine blocks during machining operations, utilizing the male M18x1.5 rod thread for robust fixture mounting and FKM seals to resist way-oil contamination.
Actuates routing gates on parcel logistics conveyors, moving the 75 mm stroke rapidly to redirect packages while the fixed NBR bumpers absorb the repetitive end-of-stroke impact.
When sizing this 50 mm bore 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 at the same pressure. Keep in mind that a plain compact cylinder does not hold its position if air pressure drops or the valve is centered; the piston will drift, and the fixed bumper only decelerates near the stroke end. To lock a suspended load, an external rod lock or pilot-operated check valve is required. Confirm your ordering essentials: 50 mm bore, 75 mm stroke, PT1/4 port, male M18x1.5 rod thread, and FKM seals.
Quick checklist
This 50 mm bore double-acting 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. It operates between 0.15 and 1.0 MPa, with a proof pressure of 1.5 MPa, and runs at speeds from 30 to 500 mm/s.
No. This SKU lacks the -S option, meaning it has no piston magnet and cannot accept AirTAC reed or electronic switches. Additionally, SDA series cylinders do not use adjustable air cushions; they rely on a fixed NBR bumper at each end to decelerate the stroke. For high-speed applications, you should add an external shock absorber or slow the approach speed.
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