
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX180-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 180mm 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.
The AirTAC SAIJ100X180-40 is a double-acting ISO 15552 profile cylinder with a rear stroke adjuster, letting you dial back the 180 mm nominal travel to any point within a 140-180 mm usable window. A PT tapered port and SUS420J2 stainless steel rod (option A) equip this unit for demanding environments.
The rear adjuster acts purely as a mechanical stop for end-position tuning during commissioning or product changeovers, eliminating the need to swap cylinders or bolt on external stops. It does not lock the load without live air pressure. For position holding, consider the SAIL or BSAI series. This extruded aluminum barrel includes dual sensor grooves for CMSE reed or DMSE solid-state switches if a magnet is added later.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX180-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 180 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. |
| ×180 | 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.
Fine-tune the 140-180 mm travel window on the fly during line format changes without physically swapping out the actuator.
Dial in the exact retract position during machine commissioning using the rear mechanical stopper for precise positioning.
Adjust the effective stroke dynamically for different material thicknesses or pressing depths in automated assembly lines.
The 40 mm adjustment range is ideal for machinery requiring frequent product-size changeovers, allowing variable end-stops without replacing the cylinder. Since this is a plain cylinder without a magnet (-S), it does not carry position sensors from the factory.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 180 mm stroke, 40 mm adjustment, PT port thread, and the SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). With a 180 mm stroke, side-load risks are minimal, but long unsupported strokes still need an external guide. The adjuster and air cushions only decelerate the travel end; they never act as a brake or hold.
Quick checklist
At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
The rear adjuster screw allows you to shorten the 180 mm nominal stroke by up to 40 mm, creating a 140-180 mm usable travel window. It functions as a mechanical stop for end-position tuning and does not hold the load without live air pressure.
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