
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX400-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 400mm 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 SAIJ100X400-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 360-400 mm usable travel window. This unit omits the FB, CA, CB, and CR mounts, utilizing a focused set of ISO 15552 mounting interfaces: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Equipped with a SUS420J2 stainless steel rod (code A) for corrosion resistance, the extruded aluminum barrel includes sensor grooves on both sides. You can deploy CMSE reed or DMSE electronic sensors for position feedback. The rear adjuster acts purely as a travel stop to fine-tune the retract end without swapping cylinders, but it does not hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX400-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 400 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. |
| ×400 | 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 360-400 mm travel window during initial commissioning to perfectly strike a heavy press without adding external mechanical stops.
Quickly adapt the retract end position on a packaging line when switching to different box sizes, saving downtime by adjusting the rear screw.
If you need less force, stepping down to an 80 mm bore yields 2513 N. If you require more holding power, a 125 mm bore provides 6136 N. Because the 400 mm stroke is substantial, an external guide is recommended to prevent excessive side-load wear on the rod.
Choose this adjustable model over a fixed SAI cylinder when you need variable end-stops for product changeovers. The PT tapered port threads match standard pneumatic fittings. For load-holding without live air, the rear adjuster and air cushions will not suffice; consider an AirTAC SAIL or BSAI series instead.
Quick checklist
At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw lets you trim the effective travel back by up to 40 mm from the 400 mm nominal stroke, creating a 360-400 mm usable window. It acts as a travel stop for end-position tuning and does not lock or hold the load without continuous air pressure.
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