
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX180-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 180mm 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 SAIJ80X180-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the travel window from 150 to 180 mm without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch placement.
This configuration uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and is equipped with a magnet for CMSE reed and DMSE electronic sensors. The rear adjuster acts purely as a mechanical stop to set the retract end-position; it does not lock or hold the load without continuous live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX180-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 180 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. |
| ×180 | 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 150 to 180 mm retract distance during product size changes without physically replacing the cylinder or adding external stopper blocks.
Fine-tune the final end-position at machine commissioning to absorb mechanical tolerances, ensuring precise positioning using the rear adjustment screw.
Provide adaptable end-stops for diverter arms or pushing mechanisms on a conveyor line where the required travel varies slightly between runs.
The 30 mm adjustment range is ideal for product changeovers, allowing you to dial in the exact retract distance during commissioning rather than swapping out a fixed-stroke SAI cylinder. Because the 180 mm stroke is below the 300 mm threshold, side-load risks are moderate, but the robust 25 mm rod and M20x1.5 thread handle standard loads effectively.
To match this ISO 15552 cylinder for a replacement, verify the 80 mm bore, 180 mm nominal stroke, 30 mm adjustment range, PT tapered port threads, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, deliberately omitting the FB, CA, CB, and CR styles. If your machine requires true load-holding without air pressure, select an SAIL or BSAI series instead of relying on this adjuster.
Quick checklist
It operates efficiently within a speed range of 30-800 mm/s.
The rear adjuster screw allows you to shorten the effective travel by up to 30 mm, creating a usable stroke window of 150 to 180 mm. This mechanical stopper sets the end position but does not lock or hold the load without live air pressure.
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