
The AirTAC SAIJ40 Adjustable Cylinder SAIJ40AX65-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø40mm bore and 65mm stroke, G1/4 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
It features a SUS420J2 stainless steel rod and PT tapered port threads. The built-in rear stopper allows you to fine-tune the end position, providing a usable travel window of 55-65mm for your specific setup.
Because the adjuster acts purely as a mechanical stop, it does not lock the load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, ready for CMSE reed or DMSE electronic switches if a magnet is specified later. It uses the reduced SAIJ mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
| Model | Airtac SAIJ40 Adjustable Cylinder SAIJ40AX65-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø40 mm |
| Stroke | 65 mm |
| Acting type | Double acting |
| Port size | G1/4 |
| Rod thread | M12×1.25 |
| 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, 30 mm |
| Max stroke | Up to 1200 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 | 528 N | 528 N |
| 0.7 MPa | 739 N | — |
| Max (@1.0 MPa) | 108 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. |
|---|---|
| 40 | Bore size in mm. |
| ×65 | 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 stroke end-position during machine format changes without physically replacing the cylinder or adding external stopper blocks.
Ideal for commissioning new equipment where the exact 55-65mm travel distance must be micro-adjusted to meet design tolerances.
The adjustable screw prevents the need to swap cylinders during product changeovers. For load-holding without continuous air pressure, select the SAIL or BSAI series instead, as the SAIJ rear adjuster only sets the travel end. To match this ISO 15552 replacement, specify: 40mm bore, 65mm stroke, 10mm adjustment, PT port, and no magnet.
Quick checklist
The rear adjuster screw acts as a mechanical stop that lets you shorten the 65mm nominal stroke by up to 10mm, creating a 55-65mm usable travel window. It does not lock the load without live air.
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