
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX145-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 145mm 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 SAIJ80X145-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 145 mm stroke that can be dialed back by up to 100 mm, yielding a highly flexible 45-145 mm usable travel window for precise end-position tuning during commissioning.
This unit is configured with a SUS420J2 stainless steel rod for enhanced corrosion resistance and PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is added later. The rear adjuster acts purely as a mechanical stop to set the travel end, meaning it cannot hold a load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX145-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 145 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. |
| ×145 | 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 end-stop for varying package sizes on a packaging line using the 45-145 mm travel window without changing hardware.
Fine-tune the retract position during initial commissioning to achieve perfect alignment, avoiding the need for external stopper blocks.
Handle multiple part lengths in a single machining cell by adjusting the rear stopper screw up to 100 mm between cycles.
The generous 100 mm adjustment range is perfect for machines handling frequent product-size changeovers.
Because this SKU carries a 145 mm stroke, standard mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Although the stroke is under 300 mm, the 25 mm rod diameter and M20x1.5 rod thread provide robust side-load tolerance, though external guides are always recommended for rigid payloads. For load-holding without continuous air pressure, specify an external rod lock or select a related SAIL or BSAI cylinder instead of relying on the adjuster.
Quick checklist
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective stroke by up to 100 mm. This creates a usable travel window of 45-145 mm. The adjuster sets the travel end but does not lock the load without live air pressure.
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