
The AirTAC Airtac SAI100 Standard Air Cylinder SAI100BX55S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 55mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAI100X55-S is a double-acting ISO 15552 profile cylinder engineered for heavy-duty automation, delivering a robust 3927 N push force at 0.5 MPa. Its 55 mm stroke provides rapid, high-impact linear motion within a standardized mounting envelope, ensuring seamless drop-in compatibility with other ISO 15552 assemblies.
This specific configuration features a SUS304 stainless steel piston rod (material code B) for superior corrosion resistance in harsh washdown or chemical settings. It includes a built-in magnet for position sensing via CMSE or DMSE switches, and utilizes PT tapered port threads to guarantee a reliable, leak-free pneumatic connection.
| Model | Airtac SAI100 Standard Air Cylinder SAI100BX55S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 55 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 | 3927 N | 3682 N |
| 0.7 MPa | 5498 N | — |
| Max (@1.0 MPa) | 801 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. |
|---|---|
| 100 | Bore size in mm. |
| ×55 | 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 high-impact force necessary for metal forming, riveting, and short-stroke stamping presses.
Acts as a robust routing actuator to redirect heavy pallets or workpieces along high-capacity material handling lines.
Delivers rapid, forceful ejection of finished metal or plastic components from molding and machining centers.
Selecting this 100 mm bore over the smaller 80 mm variant steps up your 0.5 MPa push thrust from 2513 N to 3927 N, making it the optimal choice when overcoming higher mechanical resistance. Conversely, if your application only requires around 1559 N, stepping down to a 63 mm bore saves valuable machine space and air consumption.
Because this is a 55 mm stroke, side-load stress on the rod bearing is minimal, though external guides are always recommended for perfectly aligned travel. Remember that a standard SAI relies on live air pressure to maintain its position; if your process requires static load holding during an air-loss event, consider the SAIL lock or BSAI bidirectional clamp-lock variants instead.
Quick checklist
At a 0.5 MPa operating pressure, this 100 mm bore cylinder generates 3927 N of push force and 3681 N of pull force. At the maximum 1.0 MPa pressure, the theoretical push force reaches 801 kgf.
Yes, the SAI100X55-S is dimensionally interchangeable per ISO 15552 standards. It serves as a drop-in replacement for other ISO 15552 profile cylinders of the same bore and stroke, provided your system uses a G1/2 port.
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