
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX800-75S 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 SAIJ100X800-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 725-800 mm from its 800 mm nominal stroke. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting.
This model uses a PT tapered port thread and relies on variable air cushions at both ends to decelerate the load. The rear adjuster acts purely as a travel stop for fine-tuning end positions during commissioning, not as a lock. For holding loads without live air pressure, an external rod lock or related types like SAIL or BSAI are required.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX800-75S |
|---|---|
| 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.
Fine-tune the retract stop by up to 75 mm to accommodate different product lengths on the same line without swapping out the entire actuator.
Dial in the exact 725-800 mm travel window during machine setup to resolve minor mechanical positioning variances without external shims.
Choose this 100 mm bore cylinder when an application requires substantial thrust—3927 N at 0.5 MPa or 7068 N at 0.9 MPa—and the ability to dial in a specific end-of-stroke position without adding external stops. If your process demands less force, stepping down to an 80 mm bore yields 2513 N at 0.5 MPa, whereas moving up to a 125 mm bore provides 6136 N. The adjustable stroke is ideal for machine setups requiring product changeovers, whereas a fixed SAI cylinder is preferred when the travel distance is permanently set.
When replacing an ISO 15552 cylinder, match the 100 mm bore, 800 mm stroke, 75 mm adjustment range, PT port thread, and the -S magnet requirement. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the stroke is 800 mm, the 25 mm rod diameter and M20x1.5 rod thread will experience high side-load leverage; an external guide rail is strongly recommended to prevent rod binding and premature seal wear.
Quick checklist
At 0.9 MPa, the push force increases to 7068 N.
The rear adjuster screw allows you to shorten the effective travel by up to 75 mm, creating a usable stroke window of 725-800 mm. It functions as a mechanical stop for end-position tuning and does not lock the load without air pressure.
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