
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX190-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 190mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ80X190-75-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 190 mm nominal stroke that can be fine-tuned backward by up to 75 mm, yielding a usable travel window of 115 to 190 mm.
This adjustable stopper allows precise end-position tuning during commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel provides sensor grooves on both sides for flexible switch mounting, and the PT tapered port threads ensure a tight pneumatic connection. The rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX190-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 190 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 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. |
|---|---|
| 80 | Bore size in mm. |
| ×190 | 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 115 to 190 mm stroke window on the fly to accommodate varying package sizes without changing out the cylinder.
Fine-tune the retract end position during machine commissioning to achieve precise mechanical alignment.
Adjust the actuation reach on a sorting line to handle different product widths accurately.
The generous 75 mm adjustment window is ideal for product-size changeovers on a line, replacing the need to maintain multiple fixed-stroke SAI cylinders. For position feedback, the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors.
Because the nominal stroke is 190 mm, an external guide is recommended to manage side loads. When specifying a replacement, ensure the ISO 15552 footprint, 75 mm adjustment code, PT port thread, and -S magnet match your existing mounting setup. Note that the SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. If true load-holding is required without live air, consider an external rod lock or the SAIL/BSAI series instead.
Quick checklist
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm. This creates a usable travel window of 115 to 190 mm, letting you set the exact end position without adding external stops.
The maximum push force is 4523 N at 0.9 MPa.
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