
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX90-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 90mm 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 SAIJ80X90-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 70 to 90 mm.
This variant features a SUS420J2 stainless steel rod and a PT tapered port. The integrated magnet works seamlessly with CMSE reed and DMSE electronic sensors mounted in the dual-side extruded aluminum barrel grooves. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX90-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 90 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. |
| ×90 | 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 70-90 mm end position during initial commissioning to perfect a pressing or lifting motion without machining new hard stops.
Quickly adjust the retract distance on a packaging line when product sizes change, using the 20 mm trim window to accommodate varying material heights.
Set precise retract limits for automated assembly tooling, allowing operators to fine-tune the stroke on the fly for delicate component placement.
Choose this 80 mm bore when your application requires more thrust than a 63 mm cylinder (1559 N at 0.5 MPa) but less than a 100 mm unit (3927 N). The adjustable stroke is ideal for fine-tuning end positions during commissioning or product changeovers without swapping the cylinder or adding external stops.
For any load-holding requirements, note that the rear adjuster functions strictly as a travel stop and does not lock the load without live air. For secure positioning without continuous air pressure, consider an external rod lock, or explore the SAIL or BSAI cylinder series.
Quick checklist
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 90 mm stroke by up to 20 mm, creating a 70 to 90 mm usable travel window. It sets the end position but does not hold the load without live air pressure.
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