
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX250-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 250mm 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 SAIJ100X250-10 is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. This built-in adjustability allows you to dial in the retract end-position at commissioning without swapping out the cylinder or fabricating external stops.
This model features a SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance and uses a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides, ready to accept CMSE reed or DMSE electronic switches if a magnet is added later. The rear adjuster acts purely as a travel stop to set the end position, meaning it will not hold a load dynamically without continuous live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX250-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 250 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. |
| ×250 | 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 240-250mm retract position during initial commissioning to perfectly align heavy clamping fixtures without adding external shims.
Quickly adjust the end-stop by up to 10mm on a packaging line when switching between slightly different product sizes.
The 10mm adjustment range is ideal for applications needing slight end-position tweaks during machine setup or product changeovers, offering more flexibility than a fixed-stroke SAI cylinder. For load-holding without live air pressure, this cylinder is insufficient; you should explore the SAIL pneumatic lock or BSAI clamp-lock series instead.
Because this unit features a 250mm stroke, the 25mm rod diameter and M20x1.5 rod thread provide excellent rigidity, though any long unsupported load still requires an external guide to prevent side-loading damage. It is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
Quick checklist
At 0.9 MPa, the push force increases to 7068N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 250mm nominal stroke by up to 10mm, resulting in a 240-250mm usable travel window. It only sets the end position and does not lock the load without live air pressure.
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