
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80X175-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 175mm 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 SAIJ80X175-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster.
This 80mm bore actuator uses a G3/8 port and a 25mm carbon steel rod with an M20x1.5 thread to handle high side loads. It retains the standard extruded aluminum barrel with dual sensor grooves, though it omits the FB, CA, CB, and CR mounting options found on some fixed-stroke variants.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X175-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 175 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. |
| ×175 | 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 end position for new packaging sizes using the 50mm rear adjuster, avoiding the need to physically swap cylinders on the line.
Set precise retract distances between 125 and 175 mm to handle different carton lengths on a single sorting conveyor.
Fine-tune the tooling contact point during initial commissioning to perfect the kinematics without machining custom spacers.
The 50mm adjustment range is perfect for production lines running mixed product sizes, enabling rapid end-stop tuning without adding external mechanical stops. Because the stroke is 175mm, keep the load guided to prevent excessive side loading on the rod.
When replacing an ISO 15552 cylinder, match the 80mm bore, 175mm nominal stroke, 50mm adjuster, PT port thread, and standard carbon steel rod. Note that the rear adjuster functions only as a travel stop; it will not hold a load without continuous air pressure. For true load-holding, consider the SAIL or BSAI series instead.
Quick checklist
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective stroke from its 175mm nominal length down to as little as 125mm. It is a travel stop only, not a lock, and does not hold the load without live air pressure.
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