The AirTAC AirTAC SDA40X75SBH Compact Cylinder | 40mm Bore is a genuine double-acting COMPACT (thin) air cylinder with a Ø40mm bore and 75mm stroke, PT1/8 air ports and a riveted short body that saves mounting depth. Sensor slots around the body accept magnetic switches for position sensing.
The AirTAC SDA40X75SBH is a double-acting single-rod compact cylinder engineered with a 40 mm bore and 75 mm stroke. It generates 628.3 N of push force and 527.8 N of pull force at 0.5 MPa. The riveted unibody design significantly reduces axial mounting depth compared to conventional round-body units, making it highly effective for machinery with tight footprint constraints. This specific configuration includes a male M14x1.5 piston rod thread for robust load coupling.
Equipped with an -H fluororubber (FKM) seal variant, this unit offers superior resistance to higher temperatures and oil degradation. The bore inner wall is hard-anodized for longevity, and the piston travels at speeds between 30-500 mm/s. End-of-stroke deceleration is handled by a fixed NBR bumper rather than an adjustable air cushion, meaning operators should add external shock absorbers for high-energy cycling. The integrated -S piston magnet enables position detection via an AirTAC reed or electronic switch mounted in the body grooves.
| Model | AirTAC SDA40X75SBH Compact Cylinder | 40mm Bore |
|---|---|
| Series | SDA compact (thin) cylinder |
| Bore size | Ø40 mm |
| Stroke | 75 mm |
| Acting type | Double acting |
| Port size | PT1/8 |
| Rod end thread | M8×1.25 female / M14×1.5 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 | 628 N | 528 N |
| 0.7 MPa | 880 N | — |
| Max (@1.0 MPa) | 128 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. |
|---|---|
| 40 | 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).
Secures aluminum engine blocks during CNC machining. The 628.3 N extend force reliably holds parts against locators, while the FKM seals withstand exposure to synthetic cutting fluids.
Applies consistent downward pressure on cardboard carton flaps in high-temperature packaging lines. The short 75 mm stroke and compact body fit neatly within narrow folder mechanisms.
Drives a sorting pop-up gate on a logistics conveyor. The male M14x1.5 rod threads directly into the gate linkage, and the integrated magnet triggers solid-state sensors to confirm diversion status.
Selecting this 40 mm bore provides a safe working load of roughly 377 N (about 60% of the 628.3 N push at 0.5 MPa), translating to a vertical lift capacity of approximately 32 kg with a 2:1 safety margin. If your application requires less force, stepping down to the SDA32 yields 402.1 N at 0.5 MPa; conversely, scaling up to the SDA50 provides 981.7 N. Keep in mind that a standard double-acting cylinder drifts when air pressure is lost or the valve is centered, as the fixed bumper only decelerates near stroke end rather than locking the load. For strict position holding, an external rod lock or pilot-operated check valve is necessary. When ordering, confirm the 40 mm bore, 75 mm stroke, PT1/8 port, male M14x1.5 rod, FKM seals, and the built-in magnet.
Quick checklist
This 40 mm bore double-acting cylinder outputs 628.3 N push and 527.8 N pull at 0.5 MPa, increasing to 879.6 N push and 738.9 N pull at 0.7 MPa. The theoretical maximum push force is 128 kgf at 1.0 MPa. It operates between 0.15-1.0 MPa, handles a proof pressure of 1.5 MPa, and runs at speeds from 30-500 mm/s.
It relies on a fixed NBR bumper at each end to decelerate the piston, which is not a field-adjustable air cushion; for high-speed operations, you should add an external shock absorber. The included -S magnet works with AirTAC reed or electronic switches fitted into the body grooves for end-position detection.
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