
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX400-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 400mm 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 SAIJ80X400-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 390-400 mm. This variant includes a SUS304 stainless steel rod for superior corrosion resistance and a built-in magnet for position sensing.
The 10 mm adjustment screw allows you to fine-tune the retract end position at commissioning without adding external stops. Because this is a 400 mm stroke, the 25 mm rod and M20x1.5 thread handle high side loads, though an external guide is still recommended for unsupported lengths. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX400-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 400 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. |
| ×400 | 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 390-400 mm retract position during product family changeovers without physically swapping cylinders or re-engineering fixed stop blocks.
Dial in the exact end-of-stroke location on a heavy conveyor divert arm, using the 10 mm adjustment window to compensate for mechanical drift.
Leverage the SUS304 stainless steel rod for pushing and pulling loads in washdown or mildly corrosive factory environments where carbon steel rods would fail.
The adjustable stroke is ideal for applications requiring precise end-position tuning during machine setup or product changeover, eliminating the need to swap out a fixed-stroke SAI cylinder. It operates at speeds of 30-800 mm/s.
For a direct ISO 15552 replacement, match the 80 mm bore, 400 mm stroke, PT tapered port threads, and the -S magnet option. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air; for pilot-operated load holding, consider an external rod lock or the AirTAC SAIL series. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Quick checklist
At the maximum 1.0 MPa pressure, it achieves a maximum push force of 513 kgf.
The rear adjuster screw allows you to trim the effective stroke by up to 10 mm, creating a 390-400 mm usable travel window. This stopper fine-tunes the end position but does not lock the load without continuous air pressure.
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