Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 125mm 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
- Stroke125 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-40S
The AirTAC SAIJ32X125-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 125 mm nominal stroke that can be fine-tuned backward by up to 40 mm, yielding a usable travel window of 85-125 mm. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa, making it ideal for lighter-duty precision tasks.
This specific SKU features a SUS304 stainless steel rod for superior corrosion resistance and includes a built-in magnet for position sensing. The dual-sided sensor groove accommodates AirTAC CMSE reed and DMSE electronic switches. The rear adjuster acts purely as a mechanical stop to set the end position during commissioning; it does not lock the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 125 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 SAIJ32BX125-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×125 | 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 SAIJ32BX125-40S Is Used
Product Changeover
Quickly alter the effective retraction distance by up to 40 mm when switching between different product sizes on a packaging line, minimizing downtime.
End-Stop Calibration
Fine-tune the final resting position of a pick-and-place gripper within the 85-125 mm window to achieve precise placement without mechanical shims.
Sensor Mapping
Leverage the integrated magnet and dual sensor grooves to mount CMSE or DMSE switches exactly where needed across the adjustable travel range.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-40S the Right Cylinder?
Choose this 32 mm bore adjustable cylinder when you need to dial in an exact end-of-stroke position during machine setup or product changeover, avoiding the need to swap out physical components. If your application requires greater thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Conversely, if you need a fixed travel distance without adjustment, the standard SAI series is a simpler alternative.
To replace an existing cylinder, match the 32 mm bore, 125 mm stroke, 40 mm adjustment range, PT tapered port thread, and the -S magnet option. The SAIJ utilizes a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. For load-holding applications without continuous air pressure, this cylinder is insufficient; consider the SAIL or BSAI locking variants 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 SAIJ32BX125-40S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At a maximum 1.0 MPa pressure, it can deliver up to 82 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 125 mm nominal stroke by up to 40 mm. This creates an effective travel window of 85-125 mm, though it does not lock the load in place without continuous air pressure.
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