
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100BX280-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 280mm 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 SAIJ100X280-100 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a generous 180-280mm usable travel window, allowing you to dial back the nominal 280mm stroke by up to 100mm during commissioning.
This model features a SUS304 stainless steel rod (option B) for superior corrosion resistance and carries a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster acts purely as a travel stop to set deceleration, not as a lock to hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100BX280-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 280 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. |
| ×280 | 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 180-280mm travel window during product size transitions without swapping out the entire cylinder or adding external mechanical stops.
Rely on the SUS304 stainless steel rod and adjustable end-stop for reliable double-acting motion in washdown or corrosive factory settings.
An adjustable stroke is ideal for product changeovers on a line, letting you fine-tune the end position rapidly instead of adding external stops. To replace an ISO 15552 cylinder, match the 100mm bore, 280mm stroke, 100mm adjustment, PT ports, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 280mm stroke is substantial, ensure external guidance to prevent side-loading damage to the SUS304 rod. For position holding without live air, select the SAIL or BSAI series instead.
Quick checklist
The rear adjuster acts as a mechanical stop that lets you trim the effective travel down from 280mm to a minimum of 180mm. It sets the deceleration end-point but does not lock the load without live air.
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