
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX80-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 80mm 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.
By turning the external stopper screw, you can trim the nominal 80mm travel back by up to 40mm, creating a precise 40-80mm usable window for exact end-position calibration. This eliminates the need to swap hardware during machine commissioning.
Built with a SUS304 stainless steel rod and PT tapered port threads, this 32mm bore unit operates at speeds from 30-800mm/s. It features variable air cushions at both ends to manage deceleration, while the integrated sensor grooves on both sides of the extruded aluminum barrel allow for straightforward position feedback when needed.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX80-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 80 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. |
| ×80 | 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 exact 40-80mm end-position during commissioning without machining custom spacers or swapping cylinders.
Quickly adapt the stroke window on packaging lines when running a new product batch that requires a slightly shorter travel distance.
The adjustable stroke is ideal for product changeovers where the exact end-stop varies, replacing the need for fixed-stroke SAI cylinders and external stops. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air—for positive holding, explore SAIL or BSAI models. For an ISO 15552 replacement, match the 32mm bore, 80mm stroke, 40mm adjustment, PT port, and your preferred mounting from the SAIJ set: Basic, FA, LB, TC, FTC, TCM1, or TCM2.
Quick checklist
The rear adjuster screw allows you to shorten the 80mm nominal stroke by up to 40mm, providing a usable travel window between 40mm and 80mm. This stopper only sets the end position and requires live air to maintain it.
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