
The AirTAC SAI50 Standard Cylinder SAI50X40FA is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 40mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI50X40 is a double-acting ISO 15552 profile cylinder featuring a 50mm bore and a 40mm stroke. It delivers a push force of 982 N and a pull force of 825 N at 0.5 MPa, making it well-suited for short, high-impact clamping and ejecting tasks. The extruded aluminum barrel design omits tie rods, providing a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration includes a standard carbon steel piston rod and a PT (tapered) port thread. It is prepared with an FA flange mounting accessory for secure front-plate attachment. Because the -S magnet option is not specified, this unit does not have built-in sensor grooves for CMSE or DMSE switches.
| Model | Airtac SAI50 Standard Cylinder SAI50X40FA |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M16×1.5 |
| 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 – 800 mm/s |
| Cushion | Adjustable, 30 mm |
| Max stroke | Up to 1200 mm |
Specifications follow the official AirTAC SAI series datasheet and ISO 15552 dimensions. Confirm against the product label before installation. Port options: G (BSPP) / NPT.
| 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.
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 50 | Bore size in mm. |
| ×40 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Related SAI-family variants: SAID (double rod), SAIJ (adjustable stroke), SAIL (with lock), SAIF (with valve), BSAI (enclasp / clamp-lock), and SAI-S with built-in magnet. Rod material: carbon steel (blank) / SUS420J2 (A) / SUS304 (B); seals: TPU (blank) / Viton H / NBR N.
Ideal for securing workpieces during machining, utilizing the 982 N push force at 0.5 MPa to hold components firmly in place.
Provides rapid, short-distance ejection of finished parts from a conveyor line using its 40mm stroke and 30-800 mm/s speed capability.
Actuates short diverter gates or sorting arms in packaging systems where a compact, front-flange mounted actuator is required.
If your application requires slightly less force, stepping down to a 40mm bore yields 628 N of push force at 0.5 MPa, while moving up to a 63mm bore provides 1559 N for heavier loads. The 40mm stroke is highly rigid and minimizes rod-bearing bending, making it excellent for short, direct presses without needing external guides.
This SAI50X40 setup uses an FA front-flange mount and a PT port. Remember that a standard double-acting cylinder relies on continuous air pressure to maintain its position; if pressure drops, the piston will drift. For applications that must hold a load mechanically without live pressure, consider the SAIL variant with an air-released lock or the BSAI bidirectional clamp-lock.
Quick checklist
At an operating pressure of 0.5 MPa, the SAI50X40 generates a push force of 982 N and a pull force of 825 N. At 0.7 MPa, the push force increases to 1374 N.
Yes, the SAI50X40 is dimensionally interchangeable per ISO 15552 standards. You can use it as a direct replacement for other ISO 15552 profile cylinders with a 50mm bore and 40mm stroke, provided your mounting interface matches the FA flange.
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