The AirTAC SAI32 Standard Cylinder SAI32BX40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 40mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAI32X40-S is a double-acting ISO 15552 profile cylinder engineered for compact automation, delivering 402 N of push force at 0.5 MPa. Its 40 mm stroke provides rapid, short-travel actuation in space-constrained machinery. The extruded aluminum barrel design omits tie-rods, offering a clean exterior that is dimensionally interchangeable with other ISO 15552 cylinders.
This specific configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet (-S) for position sensing. You can mount CMSE or DMSE switches directly into the sensor grooves on both sides of the barrel. Fluid ports feature PT tapered threads, ensuring robust pneumatic sealing for reliable 30-800 mm/s operation.
| Model | Airtac SAI32 Standard Cylinder SAI32BX40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 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. |
|---|---|
| 32 | 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.
Uses the 402 N push force at 0.5 MPa to reliably knock small machined components out of a fixture in high-speed production cells.
Actuates a short-stroke routing gate to sort lightweight packages on a conveyor line without occupying excessive frame space.
Secures delicate electronic housings during assembly, utilizing the SUS304 rod to prevent contamination in cleanroom environments.
Select this 32 mm bore when an application requires precise, low-force movement that would overpower a 20 mm cylinder but lacks the physical envelope for a 40 mm bore (which yields 628 N at 0.5 MPa). The 40 mm stroke is optimal for clamping, ejecting, or gating small parts without wasting cycle time on excessive travel. Because this is a genuine AirTAC component, you can expect consistent ISO 15552 mounting dimensions for straightforward direct replacement.
Keep in mind that the standard SAI relies entirely on live air pressure to move and maintain its position. If your workflow involves heavy vertical loads that could drift or drop when air is exhausted, integrate the SAIL locking variant or an external pilot-operated check valve. Furthermore, while this short stroke inherently avoids rod-bearing bending issues, any future upgrades to strokes of 300 mm or more will require external guides to prevent side-load damage.
Quick checklist
At a 0.5 MPa operating pressure, this 32 mm bore cylinder generates 402 N of push force and 345 N of pull force. If pressure is increased to 0.7 MPa, the push force rises to 563 N.
Yes, the SAI32X40-S is a true ISO 15552 profile cylinder, making its mounting interface dimensionally interchangeable with similar 32 mm bore cylinders from other manufacturers that adhere to the same standard.
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