
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX375-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø100mm bore and 375mm 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 SAIJ100X375-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. By turning the rear stopper screw, you can trim the nominal 375mm stroke back by up to 75mm, providing a usable travel window of 300-375mm for precise end-position tuning during machine commissioning.
This variant includes a magnet for CMSE and DMSE sensors and uses a SUS420J2 stainless steel rod (material code A) for improved corrosion resistance. The extruded aluminum barrel incorporates sensor grooves on both sides. It accepts PT tapered port threads (G1/2) and utilizes the standard SAIJ mounting set, which includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX375-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø100 mm |
| Stroke | 375 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. |
| ×375 | 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 300-375mm travel window during format changes without swapping out the entire actuator.
Fine-tune the retract end-position at commissioning to dial out mechanical slop or sensor offsets.
Adjust the stroke dynamically on packaging equipment to handle different carton or pallet sizes.
The 75mm adjustment range is ideal for product size changeovers on a line, allowing you to set a new end-stop without physically swapping the cylinder or adding external stops. Because the nominal stroke is 375mm, an external guide rail is recommended to prevent excessive side-loading on the extended rod.
For exact ISO 15552 interchangeability, match the 100mm bore, 375mm stroke, 75mm adjustment, PT port threads, and the desired mounting hardware. Note that the rear adjuster acts as a travel stop, not a lock; the SAIJ does not hold loads without live air pressure. For position holding, consider the SAIL (air-released lock) or BSAI (clamp-lock) series instead.
Quick checklist
At the maximum pressure of 1.0MPa, the push force reaches 801kgf.
The rear adjusting screw acts as a mechanical stopper that shortens the effective travel. For this model, you can trim the 375mm nominal stroke back by up to 75mm, resulting in a usable travel window of 300-375mm. The adjuster only sets the end-position; it does not lock the load without live air.
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