
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80AX210-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 210mm 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 SAIJ80X210-75 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 210 mm stroke that can be dialed back by up to 75 mm, creating a precise 135-210 mm usable travel window for fine-tuning end positions during commissioning.
This model features an SUS420J2 stainless steel rod (option A) for enhanced corrosion resistance and uses PT tapered port threads with a G3/8 connection. The rear adjuster acts strictly as a mechanical stop to set the travel limit and works alongside the standard air cushions to decelerate the load. It does not lock or hold the load without continuous live air pressure.
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX210-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 210 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. |
| ×210 | 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 135-210 mm travel window rapidly during format size changes on a packaging line without physically replacing the actuator.
Fine-tune the retract stroke at machine commissioning to achieve exact material placement, using the rear screw to dial out mechanical slack.
The 75 mm adjustment range is ideal for production lines running varying product sizes, allowing operators to change the end-stop position without swapping the cylinder or adding external stops. For load-holding requirements without live air, consider an AirTAC SAIL or BSAI cylinder instead.
To match this ISO 15552 interchangeable cylinder, confirm the 210 mm nominal stroke, 75 mm adjustment, PT G3/8 port, and standard mounting options. Because the stroke is 210 mm, ensure adequate external guiding to prevent excessive side-loading on the SUS420J2 rod. Available mountings include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At 0.5 MPa, the push force is 2513 N.
The rear adjuster acts as a mechanical stop that shortens the effective travel from the 210 mm nominal stroke down to a minimum of 135 mm. It sets the end position but does not lock the load without live air pressure.
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