
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX190-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 190mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ80X190-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 150-190 mm usable travel window from its 190 mm nominal length. The extruded aluminum barrel integrates sensor grooves on both sides for flexible switch mounting.
This adjustable-stroke variant allows you to dial in the exact retract end-position during commissioning without adding external stops. The PT tapered ports and 25 mm rod thread provide a robust interface, though the rear adjuster acts only as a travel stop and will not hold the load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX190-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 190 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 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. |
|---|---|
| 80 | Bore size in mm. |
| ×190 | 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 retract position within the 150-190 mm window during initial commissioning to perfectly align fixtures without machining external stopper blocks.
Quickly adapt the end-stop position by up to 40 mm when switching between product sizes on a production line, reducing downtime.
Use the rear adjustment screw to set precise retract limits for varying material thicknesses in clamping and pressing operations.
The 40 mm adjustment window is ideal for product changeovers where the exact end-of-stroke position varies slightly between fixtures, saving you from swapping out a fixed-stroke SAI cylinder.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 190 mm stroke, PT port threads, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set. Because the stroke is under 300 mm, side-load stress on the 25 mm rod is manageable, but always ensure proper guiding for heavy loads. For load-holding requirements without live air, consider the SAIL or BSAI series instead.
Quick checklist
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm from the 190 mm nominal length, providing a usable travel window of 150 to 190 mm. It acts as a mechanical stop to set the end position and does not lock or hold the load without continuous air pressure.
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