
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX65-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 65mm 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 robust 25mm piston rod and a PT tapered G1/2 port. By integrating an external adjusting screw, this model allows you to fine-tune the retract end-position during commissioning without adding external stops.
With a 65mm nominal stroke and a 20mm adjustment range, the usable travel window spans 45 to 65mm. This specific unit utilizes an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance, while the extruded aluminum barrel houses sensor grooves on both sides. The rear stopper simply sets the travel limit; it does not lock the load without continuous live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX65-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 65 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. |
| ×65 | 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 45 to 65mm travel window during format conversions on packaging lines without physically replacing the actuator.
Fine-tune the retract position at machine commissioning to achieve precise mechanical alignment using the rear screw.
The adjustable 45-65mm window is ideal for product-size changeovers on a line, allowing operators to dial in the exact end-stop without swapping out the entire cylinder for a fixed-stroke SAI variant.
Because the stroke is under 300mm, side-load stress on the 25mm rod is manageable, though external guides are still recommended for heavy off-center loads. To replace an ISO 15552 cylinder, match the 100mm bore, 65mm stroke, 20mm adjustment, PT port, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2). Note that this plain SAIJ lacks a magnet; adding an -S suffix enables CMSE reed and DMSE electronic sensors.
Quick checklist
At 0.9 MPa, the push force increases to 7068N.
The rear adjuster screw lets you shorten the 65mm nominal stroke by up to 20mm, creating a usable travel window of 45 to 65mm. This screw acts only as a travel stop and does not hold the load without live air pressure.
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