
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX900-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 900mm 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 SAIJ80X900-10 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 890 to 900 mm. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic sensors.
This model features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The external rear stopper allows fine end-position tuning at commissioning without swapping the cylinder or adding external stops. Remember that the adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider the SAIL or BSAI series.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX900-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 900 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. |
| ×900 | 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 890-900mm travel window during packaging line format changes to accommodate different carton lengths without repositioning the cylinder.
Fine-tune the retract end-position during commissioning using the rear screw, hitting exact mechanical stops without adding external shims.
If your force requirements are lower, stepping down to the 63mm bore yields 2182N at 0.7 MPa, whereas larger 100mm bores provide 5497N. The adjustable stroke is ideal for machine setup and product changeovers, offering a 10mm tuning window that a fixed-stroke SAI cylinder cannot match.
When replacing an ISO 15552 cylinder, match the 80mm bore, 900mm stroke, 10mm adjustment, PT port threads, and the Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting set. Because the 900mm stroke is long and unsupported, an external guide is recommended to prevent excessive side-loading on the 25mm rod. Note that SAIJ omits the FB, CA, CB, and CR mounts.
Quick checklist
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke by up to 10mm, giving a usable travel window of 890 to 900mm. It allows fine-tuning of the end position without changing the cylinder.
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