
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX30-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 30mm 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 SAIJ100X30-20 is a double-acting ISO 15552 profile cylinder equipped with a rear mechanical stroke adjuster. It provides a usable travel window of 10 to 30 mm, enabling exact end-position tuning without adding external stops.
This configuration features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. The rear adjuster acts strictly as a travel stop to fine-tune the retract position, and it does not hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX30-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 30 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. |
| ×30 | 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 10 to 30 mm retract distance during machine commissioning to achieve perfect contact timing without machining custom spacers.
Quickly adapt a packaging line to varying product sizes by adjusting the rear stopper within the 20 mm range instead of swapping the entire actuator.
The adjustable 10-30 mm travel window is selected over a fixed-stroke SAI when a machine requires precise end-stop calibration during commissioning or product changeover. To match this exact configuration for an ISO 15552 replacement, specify the 100 mm bore, 30 mm stroke, 20 mm adjustment, PT port threads, and no magnet.
Because the nominal stroke is 30 mm, external side-load guides are generally not required for the unsupported rod length. However, for any load-holding requirements without continuous live air, this cylinder cannot lock in place—the adjuster is only a stop. You must use a SAIL pneumatic lock, a BSAI clamp-lock, or an external pilot-operated check valve.
Quick checklist
At the maximum operating pressure of 1.0 MPa, the push force reaches 801 kgf.
The rear adjuster screw lets you trim the effective stroke back by up to 20 mm from the 30 mm nominal length, creating a 10 to 30 mm usable travel window. It functions as a mechanical stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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