
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX240-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 240mm 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 SAIJ32X240-100-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 32 mm bore and a 240 mm nominal stroke, but the integrated adjusting screw allows you to trim the effective travel back by up to 100 mm. This creates a highly versatile 140-240 mm usable travel window, letting you dial in the exact retract end position during commissioning without swapping out the cylinder.
It includes a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and carries a magnet (-S) for position sensing via AirTAC CMSE reed or DMSE electronic switches. The extruded aluminum barrel provides sensor grooves on both sides, and the variable air cushions at both ends work alongside the rear stopper to decelerate the load smoothly.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX240-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 240 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. |
| ×240 | 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.
Rapidly adapt retract distances when switching between product sizes on a packaging line by dialing the 100 mm adjustment screw instead of re-mounting hardware.
Fine-tune the 140-240 mm travel window during R&D commissioning to find the exact end-stop required for a new assembly process.
Use the rear stopper to set precise retract limits on automated test fixtures where the target position varies slightly between production runs.
The 100 mm adjustment range is exceptionally wide, making this SKU ideal for prototyping or machinery that frequently processes different product sizes. Instead of machining custom external stops, operators can turn the rear screw to shift the travel window between 140 and 240 mm on the fly.
Because the nominal stroke is 240 mm, the M10x1.25 rod should be guided if experiencing any lateral loading. Remember that the rear adjuster functions strictly as a travel stop, not a lock; the cylinder will not hold its position without live air. For load-holding requirements without continuous pressure, consider an AirTAC SAIL or BSAI cylinder. This SAIJ model uses a PT tapered port and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts, omitting FB, CA, CB, and CR options.
Quick checklist
At the maximum 1.0 MPa pressure, it delivers up to 82 kgf.
The rear adjusting screw acts as an external stopper that can shorten the effective stroke by up to 100 mm. This gives the 240 mm nominal stroke a usable travel window of 140 to 240 mm, which can be fine-tuned during setup without replacing the cylinder.
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