
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX170-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 170mm stroke, G1/2 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
It features a SUS420J2 stainless steel rod (option A) and PT tapered ports. By turning the rear stopper screw, you can trim the effective travel by up to 50mm, creating a precise 120-170mm usable stroke window for exact end-position tuning.
This adjuster functions strictly as a mechanical stop to set the travel end and relies on the integrated air cushions for deceleration; it does not lock the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily mount CMSE reed or DMSE electronic switches if a magnet is specified later.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX170-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 170 mm |
| Acting type | Double acting |
| Port size | G1/2 |
| 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 | 3682 N | 3682 N |
| 0.7 MPa | 5154 N | — |
| Max (@1.0 MPa) | 751 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. |
|---|---|
| 100 | Bore size in mm. |
| ×170 | 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 120-170mm travel window during format size changes on a packaging line without physically replacing the actuator.
Fine-tune the retract position at machine commissioning to perfectly seat heavy components, using the rear screw rather than external shims.
The 50mm adjustment range is ideal for product changeovers on a packaging line, letting you dial in the exact 120-170mm end-stop without swapping the cylinder or adding external stops. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead, as the SAIJ adjuster is not a locking mechanism.
To match this ISO 15552 interchangeable cylinder, confirm the 100mm bore, 170mm nominal stroke, 50mm adjustment, G3/8 PT port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 170mm stroke is relatively short, side-load stress is minimal, though an external guide remains best practice for heavy loads.
Quick checklist
At 0.7 MPa, the push force increases to 5497N.
The rear stopper screw allows you to shorten the 170mm nominal stroke by up to 50mm, providing an adjustable travel window of 120 to 170mm. The screw acts as a travel stop and must not be used to hold loads without live air pressure.
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