
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX450-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 450mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ100X450-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 420-450 mm usable travel window, allowing you to dial back the nominal 450 mm stroke by up to 30 mm during commissioning.
This variant features a SUS420J2 stainless steel rod for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Because the 450 mm stroke is relatively long, an external guide is recommended to manage side loads and prevent rod deflection.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX450-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 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. |
|---|---|
| 100 | Bore size in mm. |
| ×450 | 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.
Fine-tune the 420-450 mm end-stop during product family transitions without swapping cylinders or adding external mechanical stops.
Dial in the exact retraction distance to seat heavy assemblies perfectly, using the 30 mm adjustment window to compensate for fixture tolerances.
Adjust the retract stroke on the fly to handle varying package sizes on a single conveyor line without reprogramming the motion controller.
The integrated rear adjuster allows precise end-position tuning on the fly, which is invaluable for product-size changeovers compared to a fixed-stroke SAI cylinder. To match this configuration exactly when replacing an ISO 15552 cylinder, specify the 100 mm bore, 450 mm stroke, 30 mm adjustment, PT G1/2 port, and no magnet.
Remember that the rear adjuster acts only as a travel stop and the air cushions manage deceleration; neither will hold a load without live air pressure. For true fail-safe load holding, consider an external rod lock, a pilot-operated check valve, or the AirTAC SAIL or BSAI cylinder series.
Quick checklist
At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
The SAIJ100X450-30 has a nominal 450 mm stroke with a rear mechanical adjuster that allows you to shorten the effective travel by up to 30 mm. This creates a 420-450 mm usable window, letting you set the exact retract end-position during installation.
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