
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX350-50S 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 SAIJ100X350-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 350 mm stroke that can be fine-tuned backward by up to 50 mm, yielding a practical usable travel window of 300 to 350 mm.
This variant features a SUS420J2 stainless steel rod for superior wear resistance and includes a magnet for position sensing with CMSE reed or DMSE electronic switches. The extruded aluminum barrel incorporates sensor grooves on three sides. Because the 350 mm stroke is unsupported, an external guide is recommended to manage side loads, as the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX350-50S |
|---|---|
| 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.
Dial in the 300-350 mm travel window during product size transitions without physically replacing the cylinder or bolting on external stopper blocks.
Adjust the retract position on the fly for conveyor diverters or indexing mechanisms that handle varying package lengths.
Select this 100 mm bore unit when an application requires heavy thrust combined with variable end-stop positioning. The 50 mm adjustment window is ideal for product changeovers, letting you dial in the exact end position without swapping cylinders or adding external stops. For load-holding without continuous air pressure, select a SAIL or BSAI lock cylinder instead, as the SAIJ adjuster is not a brake.
To match this ISO 15552 interchangeable cylinder exactly, confirm the 100 mm bore, 350 mm nominal stroke, 50 mm adjustment range, PT tapered port threads, and the -S magnet option. Mounting choices are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. Given the 350 mm stroke length, always pair it with an external linear guide to prevent rod binding and premature seal wear.
Quick checklist
The SAIJ100X350-50-S has a rear adjusting screw that lets you shorten the effective travel from 350 mm down to 300 mm. It acts as a mechanical stop to fine-tune the retract position, but it is not a lock and will not hold the load without live air pressure.
It operates at speeds between 30 and 800 mm/s and uses a G1/2 port.
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