
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX75-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 75mm 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 SAIJ32X75-40 is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 75 mm stroke that can be fine-tuned down by up to 40 mm, yielding a usable travel window of 35-75 mm to perfectly dial in retract end positions.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and uses PT tapered port threads with a G1/8 connection. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic switches if a magnet is added later. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 75 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. |
| ×75 | 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 35-75 mm travel window during product size transitions without swapping the cylinder or bolting on external stops.
Use the rear adjuster to safely vary the stroke limit on small clamping fixtures where a fixed 75 mm stroke would be too long.
Choose the SAIJ adjustable format over the fixed-stroke SAI when a machine requires product-size changeovers that shift the end-stop. To match this exact configuration for an ISO 15552 replacement, specify a 32 mm bore, 75 mm stroke, 40 mm adjustment, PT G1/8 port, SUS304 rod, and no magnet.
Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure; for dead-air load holding, consider an external pilot-operated check valve or the SAIL lock cylinder. Because the stroke is under 300 mm, side-load risks are minimal, but the 12 mm rod still requires external guidance for heavy lateral loads.
Quick checklist
At the maximum 1.0 MPa pressure, it can deliver up to 82 kgf.
The rear adjuster acts as a stopper that lets you shorten the effective stroke by up to 40 mm from the nominal 75 mm, creating a usable travel window of 35-75 mm. It only sets the travel end and does not lock the load without live air.
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