
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX225-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 225mm 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 SAIJ32X225-40-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. An integrated magnet enables position feedback via CMSE reed or DMSE electronic sensors.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and mounting options span Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a travel stop, meaning live air is required to maintain the load position.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 225 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. |
| ×225 | 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 185-225mm travel window on the fly to accommodate different package sizes on a packaging line without swapping hardware.
Fine-tune the retract end-position during initial commissioning to achieve precise alignment without machining custom spacers.
Use the 40mm rear adjuster to tweak the stroke limit dynamically for testing actuation depths in assembly fixtures.
The adjustable stroke is ideal for product changeovers, whereas a fixed SAI cylinder suits static endpoints. For holding loads without live air pressure, consider a SAIL or BSAI lock cylinder instead.
To match this ISO 15552 cylinder for a replacement, verify the 32mm bore, 225mm stroke, 40mm adjustment, PT G1/8 port, and the -S magnet. Because the 225mm stroke exceeds 300mm only in larger frames, side-load risks are moderate here, but always ensure the M10x1.25 rod thread is properly aligned with an external guide to prevent binding.
Quick checklist
The rear adjuster allows you to shorten the 225mm nominal stroke by up to 40mm, creating a 185-225mm usable travel window. It acts as a physical stop and does not lock the load without air pressure.
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