
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX165-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 165mm 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 SAIJ80X165-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a usable travel window of 115 to 165 mm. Delivering a pull force of 2268 N at 0.5 MPa, it handles demanding positioning tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This unit is configured with a SUS420J2 stainless steel rod for enhanced corrosion resistance and PT tapered ports. The rear stopper mechanism allows precise end-position tuning during commissioning without adding external stops. Remember the adjuster sets the travel end and does not hold the load without live air; for dead-air locking, consider the SAIL or BSAI series.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX165-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 165 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. |
| ×165 | 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 retraction point within the 115-165 mm window during machine commissioning to perfect product placement without machining new hard stops.
Quickly adapt a packaging line to different carton sizes by turning the rear adjuster, shifting the 80 mm bore thrust profile to a new precise end position.
Choose this 80 mm bore when you need robust thrust, stepping up from a 63 mm bore that provides 1402 N of pull force at 0.5 MPa. The 50 mm adjustment range is ideal for product changeovers on a packaging line, allowing you to dial in the exact 115-165 mm travel distance on the fly instead of swapping to a fixed-stroke SAI cylinder.
To replace an ISO 15552 cylinder, match the 80 mm bore, 165 mm stroke, 50 mm adjustment, PT ports, and your required mounting from the SAIJ subset (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the stroke is under 300 mm, side-load stress is minimal, but ensure the M20x1.5 rod thread is aligned to avoid binding. This SKU ships without a magnet; add an -S suffix if you require CMSE or DMSE sensor detection.
Quick checklist
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 50 mm, providing an operational travel window of 115 to 165 mm. It only sets the travel end and does not lock the load without live air pressure.
At the maximum operating pressure of 1.0 MPa, the push force reaches 513 kgf.
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