
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX450-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 450mm 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 SAIJ32X450-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 450 mm stroke that can be fine-tuned down by up to 50 mm, creating a precise 400-450 mm usable travel window.
This variant features a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and includes a magnet (-S) for use with CMSE reed and DMSE electronic sensors. The extruded aluminum barrel integrates sensor grooves on both sides, and the rear adjuster acts purely as a travel stop for end-position tuning, not a load-holding lock.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 450 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. |
| ×450 | 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 400-450 mm travel window during format size changes on packaging lines, using the rear stopper to set exact end positions without changing hardware.
Fine-tune the final retract position during initial setup to clear mechanical obstructions, absorbing minor dimensional variances directly at the cylinder.
If your setup demands higher thrust, stepping up to the 40 mm bore yields 628 N. Conversely, if you only need a fixed 450 mm stroke without commissioning adjustments, the standard SAI model is a simpler choice.
Because the 450 mm stroke is relatively long for a 32 mm bore, the 12 mm rod and M10x1.25 thread should be paired with an external guide to prevent excessive side-loading. To hold a load securely without live air pressure, you must use an external rod lock or pilot-operated check valve, as the SAIJ adjuster and air cushions do not function as brakes. For a direct ISO 15552 replacement, match the 32 mm bore, 450 mm stroke, 50 mm adjustment, PT tapered port, and -S magnet.
Quick checklist
At a maximum 0.9 MPa, the push force increases to 724 N.
The rear adjuster acts as a mechanical stop that trims the effective travel. For this 450 mm nominal stroke model, you can reduce the stroke by up to 50 mm, resulting in a usable travel window of 400-450 mm. It only sets the end position and does not lock the load.
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