
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX165-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 165mm stroke, G1/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it a drop-in replacement for other ISO 15552 cylinders in automation lines.
The AirTAC SAIJ32X165-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel down to a 145-165 mm window without adding external stops. Driven by a 12 mm carbon steel core, this specific SKU is built with a SUS304 stainless steel rod (option B) for superior corrosion resistance in harsher environments. It delivers 402 N of push thrust at 0.5 MPa and up to 724 N at 0.9 MPa.
Equipped with a magnet for position sensing, it integrates seamlessly with AirTAC CMSE reed and DMSE electronic solid-state switches mounted in the dual-sided sensor grooves. The extruded aluminum barrel design omits tie-rods, and the rear adjuster functions strictly as a travel stop to dial in end positions during machine commissioning.
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX165-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 165 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 | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
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. |
| ×165 | 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 145-165 mm end-stop during initial setup to perfect striking distance without machining custom spacers.
Quickly retract the stroke by up to 20 mm on packaging lines when switching to a slightly shorter product variant.
Pairs with DMSE electronic sensors to verify retracted positions across variable travel distances on small conveyor diverter arms.
Choose this 32 mm bore adjustable-stroke cylinder when your application requires precise end-position tuning at setup or during product changeovers, rather than relying on a fixed-stroke SAI variant. If your process needs less force, stepping down is not an option in the standard SAIJ range, but stepping up to a 40 mm bore yields 628 N of push force at 0.5 MPa, providing a heavier thrust buffer.
To replace an ISO 15552 cylinder of the same footprint, match the 32 mm bore, 165 mm stroke, 20 mm adjustment range, PT tapered port thread, and the -S magnet option. Remember that the rear adjuster acts only as a travel stop and cannot hold a load without live air pressure; for fail-safe load holding, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder. Because the 165 mm stroke is under 300 mm, side-load risks are moderate, but an external guide is still recommended for heavy lateral loads.
Quick checklist
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. If you increase the pressure to 0.9 MPa, the push force reaches 724 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the nominal 165 mm stroke by up to 20 mm, creating a usable travel window of 145-165 mm. It only sets the end position; it does not lock the load without air pressure.
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