
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX290-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 290mm 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 SAIJ100X290-75-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a SUS420J2 stainless steel rod and a PT tapered port thread. By turning the external adjusting screw at the rear, you can shorten the effective travel, creating a usable stroke window of 215-290 mm without changing the cylinder itself.
The extruded aluminum barrel includes sensor grooves on both sides. Fitted with a magnet, it supports AirTAC CMSE reed and DMSE electronic solid-state switches for exact end-position detection. The rear adjuster acts purely as a travel stop to fine-tune the end position during commissioning; it does not hold the load without live air. For load-holding without pressure, consider the SAIL or BSAI series.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX290-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 290 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. |
| ×290 | 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 215-290 mm travel distance during machine commissioning to perfectly seat parts without re-engineering the fixture.
Quickly adapt a packaging or assembly line to different carton lengths by adjusting the rear stopper up to 75 mm in minutes.
Leverage the 36 mm variable air cushion alongside the stopper to decelerate heavy 100 mm bore movements smoothly before the final position.
Choose this adjustable-stroke model over a fixed SAI when you need variable end-stops for rapid product changeover or fine-tuning at machine setup, avoiding the need to bolt on external stops. To match this ISO 15552 interchangeable cylinder, specify the 100 mm bore, 290 mm stroke, 75 mm adjustment, PT port, and the -S magnet. Because the 290 mm stroke is relatively long, ensure the 25 mm rod and M20x1.5 thread are paired with an external guide to handle side loads. SAIJ uses a reduced mounting set: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Quick checklist
The maximum rated force is 801 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to trim the 290 mm nominal stroke back by up to 75 mm. This creates a usable travel window of 215 to 290 mm. The adjuster only sets the end position; it does not lock the load without continuous air pressure.
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