
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX500-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 500mm 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 SAIJ100X500-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 480-500 mm usable travel window, letting you trim the effective stroke by up to 20 mm during commissioning without external stops.
This extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear screw acts purely as a travel stop and does not hold the load without live air pressure. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX500-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 500 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. |
| ×500 | 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 480-500 mm travel window during product size changes to perfectly dial in the end position without adding mechanical shims.
Adjust the rear stopper on the fly for assembly lines handling slightly different part lengths within the 20 mm adjustment range.
The adjustable stroke is ideal for product changeovers, allowing precise end-position tuning without swapping the cylinder. For a fixed end position, a standard SAI cylinder suffices.
Because the 500 mm stroke is long, an external guide is recommended to manage side loads on the 25 mm rod. The rear adjuster is a stop, not a lock; for load-holding without live air, consider an AirTAC SAIL or BSAI cylinder. This model uses PT ports and omits FB, CA, CB, and CR mounts.
Quick checklist
At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw allows you to shorten the 500 mm nominal stroke by up to 20 mm, creating a 480-500 mm usable travel window. It functions as a mechanical stop and does not lock the load without air pressure.
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