
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX425-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 425mm 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 SAIJ80X425-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 415 to 425 mm. The extruded aluminum barrel features sensor grooves on both sides, and the included magnet (-S) supports precise tracking via CMSE reed or DMSE electronic solid-state switches.
This variant utilizes a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and features PT tapered port threads. The rear adjustment screw allows mechanics to fine-tune the retract end position during commissioning without adding external stops. Note that the adjuster acts only as a travel stop and does not hold the load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX425-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 425 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. |
| ×425 | 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 retract position within the 415-425 mm window during initial setup to align heavy fixtures without machining hard stops.
Quickly adjust the end-of-stroke position by up to 10 mm on packaging lines when handling slightly different product sizes.
The adjustable 10 mm end-stop is ideal for machine setups requiring minor positional corrections at commissioning, offering flexibility that a fixed-stroke SAI cylinder cannot provide. For load-holding without continuous air pressure, an external rod lock or pilot-operated check valve is necessary, as the SAIJ adjuster is not a locking mechanism.
Because this model features a 425 mm stroke, the 25 mm rod diameter should be paired with an external guide to prevent excessive side-loading and premature seal wear. It is dimensionally interchangeable per ISO 15552 mounting interfaces and uses a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. Configuration specifics include PT ports, SUS420J2 rod material, and a magnet for CMSE or DMSE sensors.
Quick checklist
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 10 mm, creating a usable travel window of 415 to 425 mm. It functions as a mechanical stop for end-position tuning and is not a lock.
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