
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX40-40S 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.
Because the 40mm nominal stroke matches the 40mm adjustment code, operators can dial the effective travel down to a zero-mm window. This extreme flexibility allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops.
This SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE and DMSE sensors. The extruded aluminum barrel carries sensor grooves on both sides, and the G1/2 port handles the 30-800mm/s speed range. The rear adjuster acts purely as a travel stop for deceleration, not a lock, so live air is required to hold the load.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX40-40S |
|---|---|
| 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 the stroke from 0 to 40mm instantly to accommodate varying package sizes on a single line without changing hardware.
Fine-tune the retract end-stop during commissioning to achieve precise seating of heavy 3927N assemblies.
Leverage the built-in magnet with DMSE solid-state sensors to confirm clamp positions within the tight 40mm window.
The adjustable 0-40mm travel window is ideal for machines requiring frequent product-size changeovers, replacing fixed-stroke SAI cylinders when exact end-stops vary. For load-holding without live air pressure, select a SAIL or BSAI cylinder instead, as the SAIJ adjuster is only a stop.
To replace an ISO 15552 cylinder, match the 100mm bore, 40mm stroke, 40mm adjustment, PT tapered port, and the -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
The rear adjuster screw lets you trim the effective travel anywhere from 0 to 40mm. It acts as a mechanical stop to set the end position, but it does not lock the load without continuous air pressure.
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