
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 120mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ80X120-10-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It features a 25mm carbon steel rod and PT tapered port threads. By turning the external rear stopper screw, you can fine-tune the effective travel down by 10mm, creating a precise 110-120mm usable stroke window without adding external stops.
Delivering substantial thrust, this 80mm bore unit generates 3518N of push force at 0.7MPa and 4523N at 0.9MPa. The extruded aluminum barrel includes sensor grooves on both sides, and the -S magnet option enables direct mounting of CMSE reed or DMSE solid-state switches. The rear adjuster acts purely as a travel stop to set end positions, meaning it will not hold the load if air pressure drops.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X120-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 120 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
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. |
| ×120 | 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 110-120mm travel window during product line changeovers to set new end stops without physically swapping out the entire cylinder.
Fine-tune the exact retract position during commissioning to perfectly align tooling or meet tight dimensional tolerances.
Provide reliable 4523N thrust at 0.9MPa for pressing or clamping components, while retaining the ability to trim the stroke by up to 10mm.
Choose this adjustable model over a fixed-stroke SAI when you need in-field commissioning flexibility to dial in exact end-of-stroke positions during machine setup or product changeovers. If your application requires less force, stepping down to a 63mm bore yields 2182N of push at 0.7MPa, whereas stepping up to a 100mm bore provides 5497N. The 25mm rod and M20x1.5 thread offer high rigidity and side-load resistance, but even at 120mm travel, maintaining an external guide rail is recommended for heavy loads. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Because the adjuster is a stop and not a lock, load-holding without live air requires a SAIL or BSAI cylinder.
Quick checklist
The rear adjuster screw acts as a mechanical stop that lets you shorten the 120mm nominal stroke by up to 10mm, providing a usable travel window of 110-120mm. It sets the end position but does not lock or hold the load without live air pressure.
At 0.7MPa operating pressure, the cylinder provides 3518N of push force and 2268N of pull force. At 0.9MPa, the push force increases to 4523N.
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