
The AirTAC SAIJ160 Adjustable Cylinder SAIJ160BX280-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø160mm bore and 280mm stroke, G3/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ160X280-40 is a double-acting ISO 15552 profile cylinder featuring a rear mechanical stroke adjuster. It provides a 240-280 mm usable travel window, allowing you to dial back the 280 mm nominal stroke by up to 40 mm during commissioning without adding external stops.
This extruded aluminum profile cylinder includes variable air cushions at both ends to decelerate heavy loads safely. The rear adjuster acts only as a travel stop and does not hold the load without live air pressure. It operates at 30-500 mm/s and uses a PT G3/4 port.
| Model | Airtac SAIJ160 Adjustable Cylinder SAIJ160BX280-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø160 mm |
| Stroke | 280 mm |
| Acting type | Double acting |
| Port size | G3/4 |
| Rod thread | M36×2 |
| 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 – 500 mm/s |
| Cushion | Adjustable, 50 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 | 9425 N | 9425 N |
| 0.7 MPa | 13195 N | — |
| Max (@1.0 MPa) | 1922 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. |
|---|---|
| 160 | 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.
Dial in the exact 240-280 mm end-stop during machine setup to accommodate varying material thicknesses without swapping cylinders.
Quickly adjust the retract position on a packaging line when transitioning between different package sizes.
Choose this adjustable-stroke SAIJ over a fixed SAI when a 240-280 mm travel window is required; otherwise, a fixed stroke is simpler.
Because the 280 mm stroke exceeds 300 mm? No, but heavy moving masses still require an external guide to prevent side-load damage. To replace an ISO 15552 cylinder, match the 160 mm bore, 280 mm stroke, 40 mm adjust, PT G3/4 port, and desired mounting. Note that SAIJ omits FB, CA, CB, and CR mounts, offering only Basic, FA, LB, TC, FTC, TCM1, and TCM2. For load-holding without live air, use an external rod lock or pilot-operated check valve, as the adjuster is not a brake.
Quick checklist
The rear adjusting screw lets you shorten the 280 mm nominal stroke by up to 40 mm, creating a 240-280 mm usable travel window. The adjuster is a mechanical stop, not a lock, so it cannot hold the load without continuous air pressure.
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