
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX290-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 290mm 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 SAIJ80X290-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 190 to 290 mm, allowing you to dial back the nominal stroke by up to 100 mm during commissioning.
This variant includes a SUS304 stainless steel rod for corrosion resistance and a magnet for CMSE or DMSE sensors. It uses PT tapered ports (G3/8) and omits the FB, CA, CB, and CR mounting styles found on fixed cylinders.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 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. |
| ×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.
Perfect for automated lines requiring frequent end-position adjustments within the 190-290 mm window without swapping cylinders.
Quickly reconfigure machine stroke limits during packaging format changes using the 100 mm rear adjustment screw.
Fine-tune the retract end-position during setup to avoid adding external mechanical stops to the frame.
The 100 mm adjustment range is ideal for product changeovers where end-stops frequently shift, unlike a fixed SAI cylinder.
At 290 mm stroke, the M20x1.5 rod handles side loads well, but an external guide is recommended for unsupported travel. The rear adjuster acts as a travel stop, not a lock; for load-holding without live air, use a SAIL or BSAI cylinder.
Quick checklist
At 0.7 MPa, push force increases to 3518 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 100 mm. This creates a usable travel window of 190 to 290 mm, letting you fine-tune the retract end position without external stops.
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