
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX225-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 225mm 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 SAIJ80X225-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits precise end-position tuning. With a nominal 225 mm stroke and a 30 mm adjustment range, it yields a usable travel window of 195-225 mm to accommodate product changeovers without adding external stops.
This variant incorporates a SUS420J2 stainless steel piston rod (option A) for enhanced corrosion resistance and carries a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for track-mounting position detection. The rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for position holding, consider the SAIL or BSAI series.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX225-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 225 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. |
| ×225 | 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 retract position within the 195-225 mm range during machine commissioning to accommodate varying part dimensions without swapping cylinders.
Quickly adjust the rear stopper screw on packaging lines when switching between different package sizes, reducing downtime and mechanical retooling.
The adjustable stroke is ideal for commissioning setups where the exact end-of-stroke position must be dialed in within the 195-225 mm window. It operates at speeds of 30-800 mm/s and uses a G3/8 port.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 225 mm stroke, 30 mm adjustment, PT port, and Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting interfaces. Because this is a 225 mm stroke, the 25 mm rod diameter and M20x1.5 rod thread provide rigidity, but an external guide is recommended for heavy side loads. For load-holding without air pressure, use an external rod lock or pilot-operated check valve.
Quick checklist
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 30 mm, providing a usable travel window of 195-225 mm from the nominal 225 mm stroke. The adjuster acts as a mechanical stop for end-position tuning and is not a locking device.
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