
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX425-10 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 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the effective travel down to a 415-425 mm window during commissioning. The extruded aluminum barrel features sensor grooves on both sides, though this specific configuration ships without a magnet.
Built for demanding environments, this variant features a SUS304 stainless steel piston rod for superior corrosion resistance. It uses PT tapered port threads (G3/8) and includes variable air cushions at both ends to manage deceleration. Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-10 |
|---|---|
| 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 415-425 mm travel window during line changeovers to accommodate different package sizes without physically swapping cylinders.
Use the 425 mm travel for extended reach operations, pairing it with an external guide rail to manage side-load on the 25 mm SUS304 rod.
The 10 mm adjustable range is ideal for dialing in exact end-of-stroke positions on product changeovers without adding external physical stops or swapping out a fixed-stroke SAI cylinder. For load-holding requirements without continuous air pressure, consider the SAIL or BSAI series instead.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 425 mm stroke, 10 mm adjustment, PT G3/8 port, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting interface. Because the 425 mm stroke is long, always use an external guide to support the load and prevent excessive side-loading on the 25 mm rod.
Quick checklist
A rear adjusting screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 425 mm down to 415 mm. This provides a 10 mm tuning window for precise end-position setup without changing the cylinder.
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