
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX475-40S 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 SAIJ100X475-40-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. This built-in adjustability allows you to dial in the exact retract end-position during commissioning without adding external stops.
This SKU includes a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance and a magnetic piston (-S) for position sensing. The extruded aluminum barrel houses sensor grooves on both sides, supporting AirTAC CMSE reed and DMSE electronic solid-state switches. PT tapered ports (G1/2) and a 25mm rod diameter further ensure secure, high-flow pneumatic connections.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX475-40S |
|---|---|
| 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.
Fine-tune the 435-475mm retract position on packaging lines when switching between different carton or pallet sizes without changing the cylinder.
Dial in the exact end-of-stroke stop during initial commissioning to perfect pressing or forming forces without machining custom external spacers.
Provide a flexible 40mm adjustment window on automated assembly stations to accommodate varying part heights or tooling offsets.
The adjustable-stroke design is ideal for product changeovers on a line, letting you shift the end-stop by up to 40mm on the fly instead of physically swapping a fixed-stroke SAI cylinder. For a direct ISO 15552 replacement, match the 100mm bore, 475mm stroke, 40mm adjustment, PT port thread, and -S magnet.
Because the 475mm stroke is relatively long, the 25mm rod and M20x1.5 rod thread provide substantial support, but an external guide is still recommended to prevent excessive side-loading on the piston. Remember that the rear adjuster acts purely as a travel stop, not a lock; the cylinder cannot hold a load without live air, so a SAIL or BSAI locking cylinder is required for fail-safe load holding.
Quick checklist
The rear adjuster screw allows you to shorten the effective stroke by up to 40mm from the 475mm nominal length, creating a usable travel window of 435-475mm. This stopper sets the retract end-position but does not lock the load without continuous air pressure.
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