
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX40-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 40mm 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.
It features a SUS304 stainless steel rod, a PT tapered port, and an integrated magnet for position sensing. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch installation.
With a 40mm nominal stroke and a 10mm adjustment range, this SKU provides a usable travel window of 30-40mm. This allows precise end-position tuning during commissioning without adding external stops. The rear adjuster acts strictly as a travel stop to set deceleration, not as a lock, so live air is required to hold the load.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX40-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 40 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. |
| ×40 | 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 exact 30-40mm end position during format size changes without swapping the cylinder or adding shims.
Fine-tune the retract position at machine commissioning to perfect part seating using the rear stopper screw.
The adjustable 30-40mm window is ideal for product changeovers on a line, replacing fixed-stroke SAI cylinders when exact end positions need frequent fine-tuning. For load-holding without continuous air pressure, consider an external rod lock or the SAIL series.
As a dimensionally interchangeable ISO 15552 cylinder, it matches standard bore, stroke, port, and mounting dimensions. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The -S magnet works with AirTAC CMSE reed and DMSE electronic sensors.
Quick checklist
At 0.7MPa, the push force increases to 3518N.
The rear adjuster allows you to trim the 40mm nominal stroke back by up to 10mm, creating a usable travel window of 30-40mm. It functions as a travel stop and does not lock the load without live air.
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