
The AirTAC SAI50 Standard Cylinder SAI50AX375S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 375mm 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 SAI50X375-S is a double-acting profile cylinder built to the ISO 15552 mounting interface standard. It delivers a push force of 982 N at 0.5 MPa, making it well-suited for medium-duty handling tasks requiring a 375 mm travel distance.
This variant includes a magnetic piston for use with CMSE and DMSE series position sensors. It is equipped with a SUS420J2 stainless steel piston rod (material code A), offering enhanced corrosion resistance compared to standard carbon steel. Adjustable air cushions at both ends manage impact energy at the stroke limits.
| Model | Airtac SAI50 Standard Cylinder SAI50AX375S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 375 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. |
| ×375 | 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.
Provides the 982 N push force needed to deflect medium weight packages on a high-speed sorting conveyor over a 375 mm reach.
Advances workpieces to a machining fixture, utilizing the 375 mm stroke to clear the work area during part changeover.
Stops or indexes empty pallets on a gravity roller track, using the magnetic piston to confirm retraction for the next load.
If your application requires slightly less push force, stepping down to the 40 mm bore yields 628 N at 0.5 MPa. For heavier payloads, the 63 mm bore provides 1559 N. The 375 mm stroke length is substantial; long unsupported rods are susceptible to bending under side loads. To prevent premature wear on the rod bearing and seals, use an external guide rail or a guided cylinder mechanism.
This unit features a PT tapered G1/4 port and a magnet for sensor detection. As a true ISO 15552 profile cylinder, it serves as a direct dimensional direct replacement for similar international standard cylinders. Note that the standard SAI does not hold position when air pressure is removed; for fail-safe load holding, consider the SAIL or BSAI variants.
Quick checklist
At 0.5 MPa operating pressure, this 50 mm bore cylinder 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.
No, the standard SAI cylinder will drift or drop if air pressure is lost. The adjustable cushion only decelerates the piston at stroke ends. For position holding, use the SAIL locking variant or an external rod lock.
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