
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX100-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 100mm 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 SAIJ100X100-40-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 60 to 100 mm, allowing you to dial back the nominal 100 mm stroke by up to 40 mm during commissioning.
This unit includes a magnet for position sensing and uses a SUS420J2 stainless steel rod for improved corrosion resistance. It features PT tapered ports (G1/2) and variable air cushions at both ends. The rear adjuster acts purely as a mechanical stop to fine-tune the end position without needing external stops, though it does not lock the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX100-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 100 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. |
| ×100 | 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 retraction point between 60 and 100 mm for assemblies requiring precise end-position tuning without mechanical modifications.
Quickly adapt the cylinder travel window during product size changes on a packaging line, reducing downtime and avoiding cylinder swaps.
The adjustable stroke is ideal for machines that process varying product sizes, letting operators change the end-stop on the fly instead of swapping cylinders or fabricating external stop blocks. For load-holding without continuous air pressure, consider the SAIL or BSAI series instead of relying on this adjuster.
When matching this cylinder for an ISO 15552 replacement, verify the 100 mm bore, 100 mm stroke, 40 mm adjustment range, PT port threads, and the -S magnet requirement. Because the nominal stroke is 100 mm, standard mounting options apply without severe side-load concerns, but always ensure the load is guided externally. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Quick checklist
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm, creating a usable travel window of 60 to 100 mm. It acts as a mechanical stop to fine-tune the end position and does not hold the load without live air.
At 0.9 MPa, the push force increases to 7068 N.
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