
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX350-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 350mm 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 SAIJ80X350-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 250-350 mm usable travel window from its 350 mm nominal stroke. It is dimensionally interchangeable per ISO 15552 standards without relying on tie-rod construction.
This specific SKU ships with a SUS420J2 stainless steel rod (option A) for superior corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel provides sensor grooves on both sides, while the rear adjuster allows you to fine-tune the retract end position at commissioning without adding external stops.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX350-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 350 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. |
| ×350 | 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 retract distance between 250 and 350 mm during machine commissioning to accommodate varying product sizes without swapping the cylinder.
Rapidly adjust the travel end-stop on packaging or sorting conveyors when switching between different carton lengths or package profiles.
Fine-tune the final end position during initial equipment setup to resolve mechanical timing issues without installing bulky external stopper blocks.
Choose this 80mm bore adjustable-stroke model when your machine setup requires variable end stops or product-size changeovers on the fly. If you need less force, stepping down to a 63mm bore yields 2805N at 0.9 MPa, but the 80mm bore is ideal for heavier payloads. Because the stroke is 350mm, an external guide is recommended to prevent excessive side-loading on the 25mm rod.
The rear adjuster acts strictly as a travel stop to decelerate the load, not as a lock; it will not hold the load without live air. For dead-end holding without pressure, consider an AirTAC SAIL or BSAI cylinder. To replace this ISO 15552 unit, match the 80mm bore, 350mm stroke, 100mm adjustment, PT G3/8 ports, and -S magnet, selecting from the SAIJ mounting set: Basic, FA, LB, TC, FTC, TCM1, or TCM2.
Quick checklist
It operates at speeds between 30 and 800 mm/s.
The rear adjuster allows you to trim the 350mm nominal stroke back by up to 100mm, creating a usable travel window of 250-350mm. This stopper decelerates the travel end but does not lock the load without live air pressure.
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