
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX450-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 450mm 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 SAIJ100X450-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. The integrated rear stopper allows you to trim the effective travel, creating a precise 375-450mm usable window without swapping out the unit.
Equipped with an SUS420J2 stainless steel rod (material code A), this actuator handles side loads better than standard carbon steel variants. It includes adjustable air cushions at both ends to manage kinetic energy, but note that these cushions and the rear stopper only decelerate the load; they do not hold position without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX450-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 450 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. |
| ×450 | 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 375-450mm travel window during product size transitions on packaging lines without repositioning cylinder mounts.
Fine-tune the final retract position during commissioning to achieve exact material placement before locking down the setup.
The 75mm adjustment range is perfect for machine changeovers, allowing you to dial in the exact end position during commissioning rather than machining external stops. For strokes of 450mm, ensure you use an external guide to prevent rod bending and premature seal wear.
When replacing an ISO 15552 cylinder, match the 100mm bore, 450mm stroke, 75mm adjustment, PT G1/2 port, and mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). This model lacks a magnet, so it cannot use CMSE or DMSE sensors; add an -S suffix if position sensing is required. If you need true load-holding without air pressure, consider the SAIL or BSAI series instead.
Quick checklist
At 0.7 MPa, the push force increases to 5497N.
The rear adjusting screw acts as a mechanical stopper, allowing you to shorten the 450mm nominal stroke by up to 75mm, resulting in a usable travel window of 375 to 450mm. This stopper only sets the end position; it does not lock the load without live air.
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