
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX450-50S 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 SAIJ100X450-50-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 450 mm nominal stroke that can be dialed back by up to 50 mm, yielding a 400-450 mm usable travel window for precise end-position tuning.
This variant includes a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and is equipped with a magnet for CMSE reed and DMSE electronic sensors. It uses a G1/2 port and retains the standard SAI mounting interface, omitting FB, CA, CB, and CR mounts.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX450-50S |
|---|---|
| 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 exact 400-450 mm end position during initial commissioning to align tooling without machining custom spacers.
Quickly adjust the retract stop to accommodate varying package lengths on a packaging line.
Use the 50 mm adjustment range to fine-tune the deceleration point alongside the built-in air cushions.
The adjustable rear stopper allows you to fine-tune the retract end position during commissioning or product changeover without swapping out the entire cylinder or adding external stops. The 25 mm rod and M20x1.5 thread handle substantial side loads, but with a 450 mm stroke, you should still use an external guide to prevent rod binding.
To match this ISO 15552 interchangeable cylinder, verify the 100 mm bore, 450 mm stroke, 50 mm adjustment range, G1/2 PT port, and the -S magnet option. Remember that the rear adjuster is a travel stop, not a lock; it cannot hold a load without live air pressure. For load-holding without continuous air, consider an AirTAC SAIL or BSAI cylinder.
Quick checklist
At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf.
The rear adjusting screw acts as a mechanical stop that lets you shorten the effective stroke by up to 50 mm, creating a 400-450 mm travel window. It only sets the end position and does not lock the load without live air pressure.
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