Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40S 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 SAIJ32BX325-40S
The AirTAC SAIJ32X325-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 325 mm nominal stroke that can be dialed back by up to 40 mm, giving you a precise 285 to 325 mm usable travel window for commissioning or product changeovers. Delivering 402 N of push force at 0.5 MPa, it fits light-duty applications perfectly.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet for CMSE reed and DMSE electronic sensors. Because the 325 mm stroke is relatively long for a 32 mm bore, an external guide rail is recommended to prevent excessive side-load wear on the rod.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40S |
|---|---|
| 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 SAIJ32BX325-40S
| 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 SAIJ32BX325-40S Is Used
Product Changeover Lines
Quickly adjust the 285-325 mm travel window to accommodate new package lengths without replacing the cylinder.
End-Position Calibration
Fine-tune the retract stroke during machine commissioning to dial in exact stopping points for delicate operations.
Light-Duty Diverter
Provides 402 N of push force at 0.5 MPa to deflect small items on a packaging line, with adjustable reach for varying belt widths.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX325-40S the Right Cylinder?
Choose this 32 mm bore when you need 402 N of thrust at 0.5 MPa and the ability to fine-tune the retract end position on the fly. If your application requires greater force, stepping up to the 40 mm bore yields 628 N at the same pressure. The adjustable rear stopper allows you to dial in the exact end position without machining external stops or swapping the cylinder for a shorter stroke variant.
As a standard ISO 15552 profile cylinder, it uses a PT tapered G1/8 port and supports a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). The rear adjuster acts strictly as a travel stop and does not lock the load; if you need true load holding without live air pressure, consider the SAIL or BSAI series instead.
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 SAIJ32BX325-40S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 40 mm, creating a usable travel window of 285 to 325 mm. This allows you to set the exact end position during commissioning without adding external stoppers.
At a 0.5 MPa operating pressure, it generates 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 801 kgf of force.
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