
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX50-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 50mm 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 SAIJ100X50-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 30 to 50 mm, letting you dial back the 50 mm nominal stroke by up to 20 mm during commissioning.
This unit is configured with a SUS420J2 stainless steel rod for corrosion resistance and includes a magnet (-S) for CMSE reed and DMSE electronic solid-state sensors. It uses PT tapered ports and retains the standard extruded aluminum barrel with sensor grooves on both sides.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX50-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 50 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. |
| ×50 | 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 30 to 50 mm travel limit during machine setup without physically remounting the cylinder body.
Quickly adapt the retract end-stop for varying product sizes on a fast-cycling production line.
The rear adjuster screw acts as a travel stop to fine-tune the 30-50 mm window without swapping cylinders or adding external stops. It is not a locking device; the cylinder will not hold a load without live air, so use a SAIL or BSAI cylinder for fail-safe load holding.
For a true ISO 15552 replacement, match the 100 mm bore, 50 mm stroke, 20 mm adjustment, PT port threads, and the -S magnet. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
At the maximum 1.0 MPa pressure, it delivers up to 801 kgf.
The rear adjuster screw lets you shorten the 50 mm nominal stroke by up to 20 mm, creating a 30 to 50 mm usable travel window. It functions as an end-position stop and does not lock the load without continuous air pressure.
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