
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX350-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 350mm 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 SAIJ100X350-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 350 mm stroke with an integrated stopper that allows you to trim the effective travel back by up to 40 mm, creating a precise 310-350 mm usable window. This variant uses a SUS420J2 stainless steel rod for enhanced corrosion resistance and features PT tapered ports.
The external adjuster enables fine end-position tuning at commissioning without swapping hardware or bolting on external stops. It uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) omitting FB and CA brackets. Because the 350 mm stroke is relatively long, the 25 mm rod diameter requires an external guide to prevent excessive side-loading and premature seal wear.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX350-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 350 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. |
| ×350 | 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.
Quickly adjust the 310-350 mm travel window during product family transitions without disassembling tooling or swapping cylinders.
Set precise retract distances for pressing or clamping stations where multiple material thicknesses require different stroke endpoints.
The adjustable stroke is ideal for product-size changeovers on a line, letting you dial in the end-stop without replacing the cylinder. Keep in mind the rear adjuster acts only as a travel stop and does not hold the load without live air; for true load-holding without pressure, consider an external rod lock or the SAIL series.
When matching this for an ISO 15552 replacement, verify the 100 mm bore, 350 mm nominal stroke, 40 mm adjustment range, PT port threads, and the required mounting bracket. Note that this specific SKU omits the -S magnet, so it cannot host CMSE reed or DMSE electronic sensors without a model change.
Quick checklist
It features a rear adjusting screw that acts as a stopper, allowing you to shorten the effective stroke from 350 mm down to 310 mm. This creates a 40 mm adjustable window for fine-tuning the end position without changing the cylinder.
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