Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 325mm 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.
- BoreØ32 mm
- Stroke325 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-75
The AirTAC SAIJ32X325-75 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a 325mm nominal stroke that can be dialed back by up to 75mm, yielding a precise 250-325mm usable travel window for on-the-fly positioning.
This variant uses an SUS420J2 stainless steel rod for improved corrosion resistance and features PT tapered port threads with a G1/8 connection. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic sensors directly without extra brackets.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 325 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.
Theoretical Output Force (Ø32mm)
| 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.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×325 | 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.
Where the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-75 Is Used
Product Changeover
Dial in the 250-325mm travel window during format changes on packaging lines without swapping out the entire cylinder.
End-Position Tuning
Fine-tune the retract stroke by up to 75mm during machine commissioning to achieve exact alignment without external stops.
Variable Stops
Adjust the end-of-stroke position on the fly for diverter gates handling differently sized items on a conveyor.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-75 the Right Cylinder?
Choose this 32mm bore when an application requires 402N push force at 0.5 MPa but demands variable end-stops during commissioning or product changeover. If your setup needs less force, stepping down is not an option below 32mm in this series, but if you need higher pulling force (528N at 0.5 MPa), step up to the 40mm bore. Because the 325mm stroke is relatively long for this bore size, an external guide is recommended to prevent excessive side-loading on the rod.
The rear adjuster acts strictly as a travel stop for end-position tuning, not a lock, meaning the cylinder cannot hold a load without live air. For load-holding requirements without pneumatic pressure, consider the SAIL or BSAI variants. This model is dimensionally interchangeable per ISO 15552 and supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Quick checklist
- ✓ Required force at your working pressure
- ✓ Stroke and mounting space
- ✓ Port/thread type (PT/NPT/G)
- ✓ Magnet (-S) for sensors?
- ✓ Side load — consider a guided cylinder
Installation & Maintenance Notes
- check Use clean air filtered to 40µm or finer.
- check Keep within 0.15 – 1.0 MPa operating pressure.
- check Avoid side load on the piston rod.
- check Adjust end cushion screws for smooth stops.
- check Use correct mounting accessory (FA/FB/CA/CB/LB/TC).
- check Installation by qualified personnel per AirTAC docs.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX325-75 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 75mm. This creates a usable travel window of 250-325mm, letting you fine-tune the end position without changing the cylinder.
At 0.5 MPa operating pressure, it provides 402N of push force and 345N of pull force. The maximum push force is 724N at 0.9 MPa.
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Covers non-human-caused product damage.
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