
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX325-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 325mm 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 SAIJ100X325-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. By turning the external stopper, you can fine-tune the effective travel down from the 325mm nominal stroke, creating a precise 295-325mm usable window to dial in end positions during commissioning.
This model features a PT tapered G1/2 port and dual-side sensor grooves for mounting CMSE or DMSE switches. The adjustment mechanism acts purely as a travel stop to set deceleration limits and does not hold the load without live air pressure. For secure load-holding in power-off scenarios, consider an external rod lock or the AirTAC SAIL or BSAI series.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX325-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 325 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. |
| ×325 | 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.
Quickly adapt end positions for different product sizes on a single line by dialing the rear adjuster within the 295-325mm window.
Fine-tune the retract stroke during commissioning without adding external mechanical stops or changing the cylinder mounting.
The 30mm adjustment range is ideal for product changeovers, allowing you to reposition the end stop without swapping the cylinder or adding external bumpers. When replacing an ISO 15552 unit, match the 325mm stroke, 30mm adjuster, PT G1/2 port, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting interface.
Because the 325mm stroke is relatively long, the 25mm rod diameter should still be paired with an external guide to prevent side-loading damage on the bearing. Note that the rear adjuster and air cushions only manage end-of-stroke deceleration; they do not function as a brake.
Quick checklist
The rear adjuster acts as a mechanical stopper that trims the retract stroke. For this model, you can shorten the 325mm nominal stroke by up to 30mm, providing an adjustable travel window of 295 to 325mm.
At 0.9 MPa, the push force increases to 7068N.
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