
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX175-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 175mm 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 SAIJ100X175-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 175 mm travel by up to 100 mm. This creates a highly flexible 75-175 mm usable stroke window, ideal for production lines running multiple product sizes.
This specific configuration features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for direct mounting of CMSE reed or DMSE solid-state switches, though this particular SKU is specified without a magnet. The rear stopper acts purely as a travel-end deceleration device and does not hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX175-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 175 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. |
| ×175 | 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.
Quickly reconfigure the 75-175 mm stroke window during product family changeovers on a packaging line, dialing in the exact end-stop without replacing hardware.
Fine-tune the retract position during machine setup to perfect part ejection or clamping distance, using the rear screw rather than shimming external stops.
The massive 100 mm adjustment range is selected when a single station must handle extreme product size variations without physically swapping cylinders or adding external mechanical stops. To match this cylinder for an ISO 15552 replacement, specify the 100 mm bore, 175 mm stroke, 100 mm adjust, PT ports, and the SUS420J2 (A) rod material.
Because the 175 mm stroke is relatively short, side-loading is less of a concern than with longer strokes, but the 25 mm rod diameter still handles moderate bending loads well. For any application requiring the load to be physically locked in place without continuous air supply, this standard SAIJ adjuster is not a brake; you should instead look at the BSAI clamp-lock or SAIL pneumatic lock series.
Quick checklist
The rear adjuster acts as an external stopper that lets you mechanically shorten the 175 mm nominal stroke by up to 100 mm, giving a usable travel window of 75-175 mm. It decelerates the travel end but does not lock the load without live air pressure.
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