
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX210-30 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 210mm 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 SAIJ100X210-30 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 210 mm stroke that can be fine-tuned down by up to 30 mm, yielding a precise 180-210 mm usable travel window.
This variant uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides. Note that the rear adjuster acts strictly as a travel stop for end-position tuning and does not lock the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX210-30 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 210 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. |
| ×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 180-210 mm travel window during product size transitions without physically replacing the cylinder or adding external mechanical stops.
Employ the robust 25 mm rod and SUS420J2 stainless steel material to push loads in mildly corrosive environments while trimming the stroke to match varying package sizes.
Choose this 100 mm bore when you need substantial thrust, stepping up from a 80 mm bore that yields 2513 N at 0.5 MPa. The adjustable stroke is ideal for machine setups requiring variable end-stops during product changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder. To match this ISO 15552 replacement exactly, verify the 210 mm stroke, 30 mm adjustment, PT G1/2 port, and your required mounting style.
Since the stroke is 210 mm, ensure external guiding is used if the application involves heavy side loads. For applications requiring the cylinder to hold its position without continuous air pressure, the SAIJ adjuster is insufficient; consider an external rod lock or the AirTAC SAIL locking cylinder instead.
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 effective stroke from its 210 mm nominal length by up to 30 mm, creating a 180-210 mm travel window. It functions as a hard stop for end-position tuning and is not a locking mechanism.
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