
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX175-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 175mm 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 SAIJ80X175-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 175 mm stroke that can be dialed back by up to 30 mm, yielding a usable travel window of 145-175 mm for precise end-position tuning. This variant features an SUS420J2 stainless steel piston rod (code A) for enhanced corrosion resistance and includes a magnet for electronic or reed sensing.
The integrated rear adjusting screw acts strictly as a mechanical stop to fine-tune the retract position during commissioning or product changeover, meaning you can shift the end-of-stroke without adding external stops or swapping the cylinder. The extruded aluminum barrel includes sensor grooves on both sides, and the unit is fitted with a PT G3/8 port. It supports a speed range of 30-800 mm/s and uses adjustable air cushions at both ends to decelerate the load smoothly.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX175-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 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. |
| ×175 | 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 145-175 mm retract stop during product size transitions to adapt end positions without physically swapping cylinders.
Use the 30 mm rear adjustment screw to fine-tune the exact end-of-stroke location for delicate part placement or testing protocols.
Leverage the SUS420J2 stainless steel rod in manufacturing cells where minor moisture or coolant splash requires a higher grade of rod material.
The adjustable 145-175 mm travel window is ideal for machine setups requiring variable end-stops without replacing the entire cylinder. For load-holding without live air pressure, note that the rear adjuster is only a travel stop, not a lock; you should instead consider an external rod lock or pilot-operated check valve. To replace an ISO 15552 cylinder, match the 80 mm bore, 175 mm stroke, 30 mm adjustment, PT G3/8 port, and the -S magnet option. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 175 mm nominal stroke by up to 30 mm, providing a usable travel window of 145-175 mm. It sets the end position but does not hold the load without live air pressure.
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