
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX120-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 120mm 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 SAIJ32X120-40-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster.
This variant includes a SUS420J2 stainless steel rod for improved corrosion resistance and a magnetic piston (-S) for position sensing. The extruded aluminum barrel incorporates sensor grooves on both sides, accepting CMSE reed and DMSE electronic switches to streamline integration.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX120-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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. |
| ×120 | 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 80-120mm retraction point during machine commissioning to perfectly seat components without repositioning the cylinder.
Quickly alter the effective stroke via the rear screw when running a new product size on the line, minimizing downtime between batches.
Utilize the magnetic piston with DMSE electronic sensors to confirm the adjusted travel endpoint, ensuring quality control in compact assemblies.
Choose this 32mm bore when an application requires precise mechanical end-stop tuning without adding external stops; if you need greater thrust, stepping up to the 40mm bore provides 628N at 0.5 MPa. The rear adjuster acts purely as a travel stop and does not hold the load without live air, so a SAIL or BSAI locking cylinder is required for fail-safe load holding.
To match this ISO 15552 interchangeable cylinder, specify: 32mm bore, 120mm stroke, 40mm adjustment, PT tapered ports, SUS420J2 rod, and a magnetic piston. Because the 120mm stroke is under 300mm, side-load stress on the 12mm rod is moderate, though an external guide remains recommended for heavy lateral loads.
Quick checklist
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 120mm nominal stroke by up to 40mm. This creates an adjustable travel window of 80-120mm, though it does not lock the load without continuous air pressure.
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