
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX500-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 500mm 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 SAIJ32X500-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. This built-in adjustability allows you to dial in the retract end-position during commissioning without swapping out the cylinder or adding external stops.
This model features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and the G1/8 port matches the 32mm bore standard. It supports a speed range of 30-800mm/s and utilizes adjustable air cushions at both ends to decelerate the load smoothly.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX500-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 500 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. |
| ×500 | 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.
Quickly dial in the 450-500mm retract distance when switching between product sizes on a packaging line without changing cylinder hardware.
Fine-tune the exact end-stop during machine commissioning to absorb mechanical tolerances and achieve perfect alignment.
Leverage the integrated magnet with DMSE electronic sensors to confirm stroke endpoints in automated sorting gates.
The adjustable stroke is ideal for product changeovers on a line, whereas a fixed SAI cylinder locks you into one exact dimension. Because the stroke is 500mm, the 12mm rod diameter requires external guiding to prevent excessive side-loading on the piston.
When specifying an ISO 15552 replacement, match the 32mm bore, 500mm stroke, 50mm adjustment range, PT tapered port threads, and the -S magnet requirement. Remember that the rear adjuster acts only as a travel stop and the air cushions only provide deceleration—neither will hold a load without live air pressure. For positive load-holding, consider an AirTAC SAIL or BSAI cylinder. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
Quick checklist
The rear adjuster screw allows you to shorten the effective stroke by up to 50mm, providing a usable travel window of 450-500mm. It acts as a mechanical stop to set the exact retract position but does not lock the load without continuous air pressure.
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