
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX30-20S 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-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the end-of-travel position during commissioning. With a 30 mm nominal stroke and a 20 mm adjustment range, it provides a usable travel window of 10-30 mm.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet (-S) supports AirTAC CMSE reed and DMSE electronic solid-state switches. The rear adjuster acts purely as a mechanical stop to set deceleration and travel limits, meaning it will not hold a load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX30-20S |
|---|---|
| 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 10-30 mm travel window during product size transitions without replacing the cylinder or adding external stops.
Fine-tune the retract end-position precisely during setup to perfect the stroke length on the factory floor.
Choose this adjustable-stroke model over a fixed SAI cylinder when your application requires variable end-stops or frequent machine changeovers without swapping hardware. If you need less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa. For higher force, a 125 mm bore provides 6136 N.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 30 mm stroke, 20 mm adjustment, PT G1/2 ports, and the -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting FB, CA, CB, and CR. Because the rear adjuster is a travel stop and not a lock, use an external rod lock or pilot-operated check valve for position holding without live pressure.
Quick checklist
The SAIJ100X30-20-S has a 30 mm nominal stroke with a 20 mm rear adjuster, creating a usable travel window of 10-30 mm. The rear screw acts as a stop to shorten the effective stroke as needed.
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