
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX40-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 40mm 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 SAIJ100X40-30-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 40 mm stroke that can be fine-tuned down by up to 30 mm, yielding a highly versatile 10-40 mm usable travel window.
This configuration features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors. The extruded aluminum barrel incorporates sensor grooves on both sides, and the rear adjuster functions strictly as a travel stop for commissioning rather than a load-holding lock.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX40-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 40 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. |
| ×40 | 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 10-40 mm travel window during production line changeovers to accommodate varying part dimensions without replacing the cylinder.
Use the rear adjuster to set exact retraction limits during machine commissioning, ensuring perfect alignment for high-force clamping.
The adjustable stroke is selected over a fixed SAI cylinder to allow rapid machine setup and product-size changeovers without swapping hardware.
For ISO 15552 replacement matching, verify the 100 mm bore, 40 mm stroke, 30 mm adjustment, PT tapered port thread, and the -S magnet. Note that a plain SAIJ does not hold position without live air; for load-holding requirements, consider an external rod lock or the AirTAC SAIL series. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
The rear adjuster acts as a mechanical stop that shortens the effective travel. For this model, the 40 mm nominal stroke can be trimmed back by up to 30 mm, providing a usable travel window of 10 to 40 mm.
The maximum push force is 7068 N at 0.9 MPa.
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