
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32AX280-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 280mm 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 SAIJ32X280-50-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster.
This variant includes an -S magnet for CMSE reed and DMSE electronic sensors, utilizing the dual sensor grooves on the extruded aluminum barrel. It features a SUS420J2 stainless steel rod (code A) for improved corrosion resistance and uses PT tapered port threads with a G1/8 connection.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX280-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 280 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. |
| ×280 | 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 230-280mm travel window during machine setup to accommodate different product lengths without changing the cylinder.
Fine-tune the retract end position at commissioning to achieve precise mechanical alignment without adding external stopper blocks.
Leverage the -S magnet with DMSE electronic sensors to trigger diverter arms accurately within the adjusted travel range.
The adjustable rear stopper lets you dial in the 230-280mm travel window during commissioning without adding external stops or swapping a fixed-stroke SAI cylinder. Remember that the rear adjuster functions only as a travel stop, not a lock, so it will not hold the load without live air pressure.
Because this 280mm stroke is relatively long for a 32mm bore, the 12mm rod and M10x1.25 thread still require external guiding to prevent excessive side-loading. This SAIJ model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. For exact ISO 15552 interchangeability, match the 32mm bore, 280mm stroke, 50mm adjustment, PT G1/8 port, and -S magnet.
Quick checklist
At 0.7 MPa, the push force increases to 563N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the 280mm nominal stroke down to 230mm. It only sets the end position and does not lock the load without air pressure.
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