
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX425-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 425mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
The AirTAC SAIJ32X425-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 425 mm travel by up to 100 mm, creating a usable window of 325-425 mm. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Because this adjuster functions purely as a mechanical stop to set the retraction end-position, it does not hold the load without live air pressure. For applications requiring true load-holding without continuous air supply, consider the SAIL or BSAI locking cylinder variants instead.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 425 mm |
| Acting type | Double acting |
| Port size | G1/8 |
| Rod thread | M10×1.25 |
| 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, 27 mm |
| Max stroke | Up to 1000 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 | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 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. |
|---|---|
| 32 | Bore size in mm. |
| ×425 | 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.
Rapidly reconfigure the retraction end-position from 425 mm down to 325 mm when switching between product sizes on a packaging line, eliminating the need to physically swap cylinders.
Fine-tune the exact stopping point during initial setup to achieve precise positioning, dialing in the 100 mm adjustment window to perfect the tooling alignment without adding external stopper blocks.
Establish a custom travel limit for delicate pick-and-place operations, using the rear mechanical stop to consistently set the retraction depth within the 325-425 mm range.
The adjustable stroke is ideal for machine changeovers, letting you fine-tune the exact end-stop during commissioning rather than swapping out a fixed-stroke SAI cylinder or fabricating external stops. When replacing an ISO 15552 cylinder, match the 32 mm bore, 425 mm stroke, 100 mm adjustment range, PT port thread, and mounting style. Available mounts include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
With a 425 mm stroke on a 12 mm rod, the extended travel length makes the piston rod susceptible to side-loading. Even with the built-in variable air cushions at both ends, an external guide should be used to support the load and prevent premature seal wear.
Quick checklist
If operating at the maximum 1.0 MPa pressure, the push force increases to 801 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 425 mm down to a minimum of 325 mm, giving a 100 mm usable travel window. It only sets the end-position and deceleration; it does not lock or hold the load without live air pressure.
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