
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX800-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 800mm 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 SAIJ100X800-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 780 to 800 mm. The extruded aluminum barrel features sensor grooves on both sides for flexible switch placement.
This configuration utilizes a SUS420J2 stainless steel rod (material code A) paired with PT tapered port threads (G1/2). The robust 25 mm rod diameter and M20x1.5 rod thread provide excellent resistance to bending under high thrust, though an 800 mm stroke still requires external guidance to prevent excessive side-loading.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX800-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 800 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. |
| ×800 | 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 780-800 mm end position during format changeovers on heavy machinery without swapping out the entire cylinder assembly.
Adjust the retract stop on the fly to accommodate different pallet sizes on a conveyor line, ensuring precise physical positioning every time.
The 20 mm rear adjuster allows you to fine-tune the retract end position during commissioning or product changeovers without adding external stopper blocks. For fixed-travel applications without end-position tuning, the standard SAI cylinder is a simpler alternative.
When integrating this cylinder, remember the rear screw acts only as a travel stop, not a locking device. It cannot hold a load without continuous live air pressure. For fail-safe load holding, consider the SAIL pneumatic lock or BSAI clamp-lock series. Dimensionally interchangeable per ISO 15552, it supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
Quick checklist
At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw allows you to shorten the effective travel from the nominal 800 mm down to 780 mm. This mechanical stop fine-tunes the end position but does not lock the load without live air pressure.
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