
The AirTAC SAI50 Standard Cylinder SAI50BX270S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø50mm bore and 270mm 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 SAI50X270-S is a double-acting ISO 15552 profile cylinder engineered to deliver 982 N of push force at 0.5 MPa. Its extruded aluminum barrel omits tie rods for a clean exterior, while the 270 mm stroke suits medium-travel positioning tasks. As a genuine AirTAC component, it ensures reliable pneumatic performance across demanding industrial environments.
This specific configuration includes a SUS304 stainless steel piston rod (option B) for superior corrosion resistance in humid or washdown settings. It is equipped with a -S magnet for direct mounting of CMSE or DMSE sensor switches along the dual-sided barrel grooves, and utilizes PT tapered port threads for a robust pneumatic connection.
| Model | Airtac SAI50 Standard Cylinder SAI50BX270S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø50 mm |
| Stroke | 270 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. |
| ×270 | 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 pushing or lifting medium-weight pallets and packages along 270 mm travel conveyor routing.
Drives linear slides and clamping fixtures where the SUS304 rod prevents moisture degradation.
Executes 270 mm diverting strokes for parcel sorting gates, utilizing CMSE sensors for end-position confirmation.
At 0.5 MPa, this 50 mm bore generates 982 N of push and 825 N of pull force. If your application requires less force, stepping down to the 40 mm bore yields 628 N of push force; conversely, moving up to the 63 mm bore provides 1559 N. Because the stroke is 270 mm, the unsupported rod length requires careful mounting to prevent rod-bearing bending under side loads. Utilizing an external guide rail or a guided cylinder is strongly recommended for this travel distance.
The SAI50X270-S is dimensionally interchangeable per ISO 15552, making it a direct replacement for other ISO 15552 profile cylinders. It features PT tapered ports, a 20 mm rod with an M16x1.5 thread, and adjustable air cushions at both ends. Remember that a standard SAI cylinder does not hold its load if air pressure is lost; for position holding without live pressure, consider the SAIL (air-released lock) or BSAI (bidirectional clamp-lock) variants.
Quick checklist
At 0.5 MPa, the 50 mm bore 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 SAI50X270-S is dimensionally interchangeable with standard ISO 15552 profile cylinders, matching mounting dimensions, 20 mm rod threads, and 270 mm stroke.
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