
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX475-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 475mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ100X475-20-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 475 mm stroke that can be fine-tuned down by up to 20 mm, yielding a precise 455-475 mm usable travel window.
This variant features a SUS420J2 stainless steel rod for enhanced corrosion resistance and includes a magnet for CMSE or DMSE sensors. The rear adjuster acts purely as a mechanical stop to dial in the retract end position during commissioning; it does not lock the load without live air pressure. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX475-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 475 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 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. |
|---|---|
| 100 | Bore size in mm. |
| ×475 | 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 455-475 mm retract position during format size changes on a packaging line without replacing the cylinder.
Fine-tune the final resting position of heavy actuators at machine commissioning to avoid mechanical hard stops.
Adjust the stroke length on a sorting diverter to accommodate different package sizes on the fly.
The 20 mm adjustment range is ideal for product changeovers, allowing you to shift the end-stop without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, consider the SAIL or BSAI series, as the SAIJ adjuster is not a locking mechanism.
Because this 475 mm stroke is relatively long, the 25 mm rod should be paired with an external guide to prevent excessive side-loading on the piston. This PT-ported model supports the SAIJ mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. The integrated magnet works with electronic DMSE or reed CMSE switches fitted into the dual sensor grooves.
Quick checklist
At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
The rear adjuster screw lets you shorten the 475 mm nominal stroke by up to 20 mm, creating a 455-475 mm travel window. It functions as a mechanical stop for end-position tuning and does not hold the load without live air.
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