
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX450-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 450mm 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 SAIJ80X450-10 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. A notable configuration is its SUS304 stainless steel rod, which maximizes corrosion resistance in harsh or washdown environments.
With a 450mm nominal stroke and a 10mm adjustment range, this SKU provides a precise 440-450mm usable travel window. This allows operators to dial in the exact retract end-position at commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE or DMSE switches if a magnet is added later.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 450 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. |
| ×450 | 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 440-450mm retract distance during machine commissioning to perfect seating pressure without swapping physical components.
Quickly adjust the stroke end-stop by up to 10mm on a packaging line to accommodate slightly different carton lengths on the fly.
Leverage the SUS304 stainless steel rod for heavy-duty pushing tasks in food processing or chemical environments where rust prevention is critical.
The adjustable stroke is selected over a fixed SAI model when a machine requires fine end-position tuning during setup or product changeover. Because the stroke is 450mm, an external guide should be used to support the load and prevent excessive side-loading on the M20x1.5 rod thread.
For an exact ISO 15552 replacement, match the 80mm bore, 450mm stroke, 10mm adjustment, PT tapered port thread, and standard non-magnet configuration. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pneumatic pressure, consider an AirTAC SAIL or BSAI cylinder. This SAIJ model supports a mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At the maximum 1.0 MPa pressure, it achieves a maximum push force of 513 kgf.
The rear adjusting screw acts as a mechanical stop that lets you shorten the effective stroke from the nominal 450mm down to 440mm. It allows fine-tuning of the end position during setup but does not lock the load without continuous air pressure.
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