
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX550-50 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 550mm 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 SAIJ32X550-50 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 550 mm travel by up to 50 mm for a precise 500-550 mm usable window.
This model uses a PT tapered port thread and includes variable air cushions at both ends to manage impact. The extruded aluminum barrel integrates sensor grooves on both sides, supporting CMSE reed or DMSE electronic switches when a magnet is specified, though this base SKU ships without one.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX550-50 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 550 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. |
| ×550 | 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 500-550 mm stroke window during format size changes on packaging lines without replacing the actuator.
Fine-tune the retraction point on diverter arms to handle varying package lengths on the fly.
Trim the final 50 mm of travel during commissioning to perfectly time tooling contact without external stop blocks.
The rear adjuster acts purely as a travel stop for commissioning and product changeovers; it is not a lock. For load-holding without live air pressure, consider an AirTAC SAIL or BSAI cylinder instead.
Because the 550 mm stroke is relatively long for a 12 mm rod, an external guide is recommended to prevent excessive side-loading. This SAIJ variant is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR options.
Quick checklist
At 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw acts as a stopper that lets you shorten the effective travel from the 550 mm nominal stroke down to 500 mm. It sets the end position but does not lock the load without live air.
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