Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-20
The AirTAC SAIJ32X140-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 120 to 140 mm, allowing you to dial back the 140 mm nominal stroke by up to 20 mm during commissioning. In the 32 mm bore class, it delivers 402 N of push force at 0.5 MPa and uses a PT G1/8 port.
This variant features a SUS304 stainless steel rod for corrosion resistance and includes adjustable air cushions at both ends. The extruded aluminum barrel integrates sensor grooves on both sides for flexible switch mounting. It is dimensionally interchangeable per ISO 15552 mounting interfaces without claiming direct brand equivalence.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 140 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 SAIJ32BX140-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×140 | 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 SAIJ32BX140-20 Is Used
End-Stop Tuning
Fine-tune the retract distance within the 120-140 mm window to perfect machine timing without physical modification.
Product Changeover
Quickly adjust the stroke end position on packaging lines when switching to a different product size.
Assembly Positioning
Dial in the exact end-of-stroke contact point for light assembly presses using the 402 N force output.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-20 the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI when you need fine end-position tuning or frequent product changeovers without swapping cylinders or adding external stops. If you need higher force, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Keep in mind the rear adjuster acts only as a travel stop; it does not hold the load without live air. For load-holding, consider an external rod lock or the SAIL series. This configuration includes a PT port thread and no magnet.
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 SAIJ32BX140-20 FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum operating pressure of 1.0 MPa, it delivers up to 82 kgf.
The rear adjuster screw lets you shorten the 140 mm nominal stroke by up to 20 mm, creating a 120-140 mm usable travel window. The adjuster sets the end stop but does not lock the load without continuous air pressure.
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