
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX375-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 375mm 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 SAIJ32X375-20-S is a double-acting, extruded aluminum profile cylinder dimensionally interchangeable per ISO 15552. It features a rear adjuster screw that creates a usable travel window of 355-375 mm from the 375 mm nominal stroke.
This model uses PT tapered port threads (G1/8) and provides variable air cushions at both ends to decelerate the load. The rear stopper sets the travel limit but does not lock the load without live air pressure; for position holding, consider SAIL or BSAI types. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX375-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 375 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. |
| ×375 | 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 355-375 mm travel window during product size transitions to set new end positions quickly without swapping hardware.
Use the rear stopper screw to adjust the retract end position precisely during initial machine setup rather than machining external stops.
Achieve exact end-of-stroke positioning within the 20 mm adjustment range for automated assembly processes requiring strict tolerances.
The adjustable stroke is selected over a fixed SAI cylinder when you need to fine-tune end positions during commissioning or product changeovers without adding external stops.
For this 375 mm stroke, the 12 mm rod diameter should be guided externally to prevent side-load damage, as long unsupported strokes require additional support. To replace an ISO 15552 cylinder, match the 375 mm stroke, 20 mm adjustment, PT G1/8 port, and -S magnet. Note that SAIJ omits FB, CA, CB, and CR mounts, utilizing only the Basic, FA, LB, TC, FTC, TCM1, and TCM2 set.
Quick checklist
The rear adjuster screw trims the 375 mm nominal stroke, creating a 355-375 mm usable travel window. It acts as a travel stop and does not hold the load without live air.
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