
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX475-40 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.
It features an extruded aluminum barrel with sensor grooves on both sides and a SUS420J2 stainless steel rod for enhanced corrosion resistance. With a nominal stroke of 475mm, the external stopper allows you to dial back the travel by up to 40mm, creating a precise 435-475mm usable window for fine-tuning end positions at commissioning.
This adjustable-stroke design eliminates the need to swap cylinders or bolt on external stops during product changeovers. The PT tapered port thread matches the G1/2 port size, while the variable air cushions at both ends manage end-of-stroke deceleration. Remember that the rear adjuster functions strictly as a travel stop, not a lock, and will not hold a load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX475-40 |
|---|---|
| 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 435-475mm travel window during product-size changeovers without swapping out the entire cylinder or adding external shims.
Fine-tune the retraction point on packaging lines to accommodate different carton sizes using the 40mm rear adjustment screw.
If your setup needs less force, stepping down to an 80mm bore yields 2513N at 0.5 MPa, whereas moving up to a 125mm bore provides 6136N. The adjustable 435-475mm travel window is ideal for machinery that requires variable end-stops or frequent product-size changeovers, replacing the need for a fixed-stroke SAI cylinder.
Because this model features a 475mm stroke, the 25mm rod diameter and M20x1.5 rod thread provide structural support, but an external guide is highly recommended to prevent excessive side-loading on the piston. It supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options. For load-holding requirements without continuous air pressure, consider an external rod lock or the AirTAC SAIL and BSAI series instead.
Quick checklist
At 0.9 MPa, the push force increases to 7068N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the 475mm nominal stroke down to as little as 435mm. This allows precise end-position tuning at commissioning without changing the cylinder, but it does not lock the load without live air.
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