
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX475-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 475mm 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 SAIJ32X475-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down from a 475 mm nominal stroke to a 400 mm minimum. This creates a highly flexible 75 mm setup window, letting you dial in exact retract end-positions during commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on three sides for straightforward switch mounting.
The rear adjuster acts purely as a travel stop to set deceleration and end limits; it does not lock the load without live air pressure. For applications requiring pneumatic load-holding on a 32 bore, consider the SAIL or BSAI series instead.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX475-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 475 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. |
| ×475 | 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 retract position up to 75 mm when switching product sizes on a packaging line, eliminating the need to physically swap cylinders.
Fine-tune the 475 mm travel window during commissioning to hit exact 400-475 mm endpoints without adding external mechanical hard stops.
Adjust the stroke length on the fly for conveyor sorting gates that need to accommodate different package depths.
If your setup needs less force, stepping down is not an option in the SAIJ line, but stepping up to a 40 mm bore yields 628 N. The adjustable stroke is ideal for dialing in final positioning without swapping out cylinders, whereas a fixed-stroke SAI requires precise upfront mechanical hard stops. This model uses PT port threads and omits the FB, CA, CB, and CR mounting brackets, offering Basic, FA, LB, TC, FTC, TCM1, and TCM2 ISO 15552 interfaces. Because the 475 mm stroke is relatively long for a 12 mm rod, always use an external guide to prevent excessive side-load wear.
Quick checklist
It operates at speeds between 30 and 800 mm/s.
The rear adjuster acts as a mechanical stop that shortens the 475 mm nominal stroke, giving you a usable travel window of 400 to 475 mm. It sets the end position but does not lock the load without live air pressure.
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