
The AirTAC SAIJ100 Adjustable Cylinder SAIJ100AX375-30 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 SAIJ100X375-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel by up to 30 mm, creating a precise 345-375 mm usable window. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback.
This model uses a PT tapered G1/2 port and a robust 25 mm rod with an M20x1.5 thread, providing excellent resistance to side loading. Because the stroke reaches 375 mm, maintaining an external guide is recommended to prevent premature wear on the rod seals. The rear adjuster acts purely as a mechanical stop to fine-tune the retraction end position and does not hold the load without continuous air pressure.
| Model | Airtac SAIJ100 Adjustable Cylinder SAIJ100AX375-30 |
|---|---|
| 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 exact 345-375 mm retraction point during tooling changeovers without physically replacing the cylinder or adding external stopper blocks.
Apply consistent pressing force across large workpieces, using the fine 30 mm adjustment window to compensate for material thickness variations.
The adjustable stroke is ideal for machine setups requiring variable end stops during product changeovers, eliminating the need to swap out a fixed-stroke SAI cylinder. When integrating this ISO 15552 interchangeable unit, verify your bore, 375 mm stroke, 30 mm adjustment, PT port, and mounting choice. Supported mounts include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
For applications requiring the load to be held securely in place without live air pressure, note that the SAIJ adjuster and air cushions function only as travel stops and deceleration devices, not as locks. In those scenarios, an external rod lock or an AirTAC SAIL pneumatic lock cylinder is required. Furthermore, since this unit lacks a magnet (-S), adding CMSE reed or DMSE electronic sensors for position detection is not supported without a magnetic piston.
Quick checklist
At 0.7 MPa, the push force increases to 5497 N.
The rear adjuster screw acts as a mechanical stop that allows you to shorten the nominal 375 mm stroke by up to 30 mm, providing an effective travel range of 345 to 375 mm. It only sets the end position and does not lock the load without air pressure.
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