Airtac Adjustable Cylinder SAIJ32 SAIJ32BX240-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX240-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 240mm 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
- Stroke240 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX240-20
The AirTAC SAIJ32X240-20 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 220-240 mm usable travel window, letting you dial back the 240 mm nominal stroke by up to 20 mm during commissioning. Delivering 402 N of push force at 0.5 MPa, it uses a SUS304 stainless steel rod for corrosion resistance and features PT tapered port threads.
This adjustable stopper allows precise end-position tuning without swapping hardware or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the rear adjuster acts strictly as a travel stop, meaning the cylinder will not hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX240-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX240-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 240 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 SAIJ32BX240-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×240 | 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 SAIJ32BX240-20 Is Used
Machine Changeover
Fine-tune the 220-240 mm travel end-position during product size transitions without physically swapping the cylinder or adding mechanical shims.
Variable End-Stop Positioning
Dial in the exact retract distance for delicate pressing or locating tasks, using the rear screw to set the precise 20 mm adjustment window.
Assembly Line Setup
Perfect the stroke limit during initial commissioning to accommodate part tolerances, ensuring consistent clamping across the run.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX240-20 the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N push force at 0.5 MPa, stepping up from a 25 mm bore if you need more thrust, or down from a 40 mm bore (628 N) for a lighter footprint. The adjustable stroke is ideal for product changeovers where the exact end-of-travel position varies by up to 20 mm, replacing the need for fixed-stroke SAI cylinders. Since the stroke is 240 mm, ensure an external guide supports any heavy loads to prevent rod side-load wear. To replace this cylinder, match the 32 mm bore, 240 mm stroke, 20 mm adjustment, PT ports, and Basic/FA/LB/TC mounting. For load-holding without live air, use an external rod lock or pilot-operated check valve, as the adjuster is not a brake.
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 SAIJ32BX240-20 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 the maximum 1.0 MPa pressure, it can deliver up to 82 kgf.
The rear adjuster screw acts as a mechanical stop that shortens the effective travel. For this 240 mm stroke model, you can trim the stroke back by up to 20 mm, creating a usable 220-240 mm travel window for fine-tuning without replacing the cylinder.
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