
The AirTAC SAI50 Standard Cylinder SAI50BX45S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 45mm 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 SAI50X45-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its 45 mm stroke provides compact linear actuation for mid-range automation tasks.
This variant features a SUS304 stainless steel piston rod for superior corrosion resistance and includes an integrated magnet for direct mounting of CMSE or DMSE sensor switches. Fluid ports use a PT tapered thread, ensuring robust pneumatic connections.
| Model | Airtac SAI50 Standard Cylinder SAI50BX45S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 45 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. |
| ×45 | 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.
Secures medium-sized workpieces during machining operations, utilizing the 982 N thrust and short 45 mm stroke for rapid, stable holding.
Actuates diverting arms on packaging lines where fast, short-stroke movements are required to route boxes efficiently.
Operates small access gates or machine guards, benefiting from the corrosion-resistant SUS304 rod in washdown or humid environments.
Providing 982 N at 0.5 MPa, this 50 mm bore is an ideal step up from the 40 mm bore (628 N) when your application demands greater thrust without a significant footprint increase. If less force is needed, stepping down to the 40 mm bore optimizes air consumption.
As an ISO 15552 profile cylinder, it serves as a direct replacement for any standard 50 mm bore cylinder with a 45 mm stroke, G1/4 or PT port, and matching mounting accessories. Remember that the standard adjustable air cushions only decelerate the piston at end-of-stroke; they do not hold a load. If your system loses air pressure, the rod will drift. For position holding without live pressure, specify the SAIL (lock) variant or use an external rod lock.
Quick checklist
At 0.5 MPa operating pressure, this 50 mm bore cylinder provides 982 N of push force and 825 N of pull force. At 0.7 MPa, the push force increases to 1374 N.
Yes. The SAI50X45-S is a genuine ISO 15552 profile cylinder, making it dimensionally interchangeable with other ISO 15552 cylinders of the same bore and stroke. You can reuse existing mounting hardware like FA flanges or LB foot brackets.
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