
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX260-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 260mm 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 SAIJ80X260-75-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. This adjustability allows you to dial in exact end positions during commissioning without adding external stops.
Built for demanding environments, this unit features a SUS304 stainless steel rod for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated -S magnet supports AirTAC CMSE reed and DMSE electronic solid-state switches for precise position feedback.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX260-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 260 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. |
| ×260 | 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 185-260mm travel window to accommodate different product lengths on the same packaging line without swapping hardware.
Fine-tune the retract position during machine commissioning to achieve exact alignment, preventing crushing or misalignment of delicate components.
Provide adjustable physical stops for automated assembly equipment where the final resting position of the tooling must be tweaked between production runs.
The 75mm adjustment window is ideal for machines handling frequent product-size changeovers, offering flexibility that a fixed-stroke SAI cylinder cannot match. Because the stroke is 260mm, ensure adequate external guiding to prevent excessive side-loading on the rod.
For an exact ISO 15552 replacement, match the 80mm bore, 260mm stroke, 75mm adjustment, PT ports, and -S magnet. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an AirTAC SAIL or BSAI cylinder. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
It operates efficiently at speeds between 30 and 800 mm/s.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from its 260mm nominal length by up to 75mm, creating a usable travel window of 185-260mm. It functions as a stop and does not lock the load without continuous air pressure.
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