
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX140-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 140mm 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 SAIJ32X140-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 40 mm, creating a precise 100-140 mm usable window.
This adjustable-stroke design eliminates the need to swap cylinders or add external stops during machine commissioning or product changeovers. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet enables seamless position detection with AirTAC CMSE reed or DMSE electronic solid-state switches.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 140 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 | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. 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. |
| ×140 | 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.
Dial in the exact 100-140 mm retract position during commissioning without physically swapping the cylinder or machining external stop blocks.
Quickly adapt the stroke end-point on a packaging line when handling slightly different carton sizes, saving minutes of retooling time.
Fine-tune the final retract stop to compensate for mechanical wear or sensor drift over the machine's lifecycle.
The SAIJ32X140-40-S is selected over a fixed-stroke SAI when the exact retract position must be dialed in at setup. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air—use an AirTAC SAIL or BSAI cylinder for fail-safe load holding. For direct ISO 15552 replacement, match the 32 mm bore, 140 mm nominal stroke, 40 mm adjustment, PT G1/8 port, and -S magnet option.
Quick checklist
The rear adjuster screw acts as a mechanical stop that can shorten the nominal 140 mm stroke by up to 40 mm, giving you an effective travel range of 100-140 mm. It functions as an end-position stop and does not lock the load without continuous air pressure.
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