
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX60-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 60mm 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 SAIJ80X60-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. With a nominal 60mm stroke and a 20mm adjustment range, you can fine-tune the effective travel down to 40mm during commissioning without adding external stops.
This pneumatic actuator includes a magnet for position sensing, supporting AirTAC CMSE reed and DMSE solid-state switches via the dual-side sensor grooves on its extruded aluminum barrel. The rear adjuster acts purely as a mechanical stop for end-position tuning and does not hold the load without live air pressure. It uses a PT G3/8 port and offers variable air cushioning at both ends to decelerate the motion smoothly.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX60-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 60 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. |
| ×60 | 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 40-60mm travel window during format size changes on packaging lines, using the rear screw to set the exact end position without hardware swaps.
Secure varying part thicknesses in machining cells by adjusting the effective stroke to match the workpiece, ensuring optimal clamping force.
Choose this 80mm bore cylinder when an application requires high thrust (up to 2513N at 0.5 MPa) alongside precise end-stop variability. The 40-60mm usable travel window provided by the 20mm adjuster is ideal for product changeovers on a line, allowing you to reposition the end-of-stroke limit on the fly rather than swapping out a fixed-stroke SAI cylinder.
For load-holding without continuous air pressure, note that the SAIJ rear adjuster and air cushions do not function as a lock; you would need to look at the SAIL or BSAI series instead. This SAIJ80X60-20-S configuration includes a -S magnet, SUS304 (B) rod material, PT threaded G3/8 ports, and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
Quick checklist
The rear adjuster allows you to shorten the nominal 60mm stroke by up to 20mm, creating a usable travel window of 40-60mm. This mechanical stopper only tunes the end position and does not lock the load when air is removed.
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