Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 120mm 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
- Stroke120 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-40
The AirTAC SAIJ32X120-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 80 to 120 mm, allowing you to dial back the 120 mm nominal stroke by up to 40 mm during commissioning. 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 well-suited for lighter-duty positioning tasks.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible mounting of CMSE reed or DMSE electronic switches. Remember that the rear adjuster functions strictly as a travel stop to fine-tune the end position without swapping the cylinder; it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 120 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 SAIJ32BX120-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×120 | 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 SAIJ32BX120-40 Is Used
Machine Setup Tuning
Dial in the exact 80 to 120 mm travel distance during initial commissioning without replacing the cylinder or adding external mechanical stops.
Product Changeover
Quickly adjust the retract end-position by up to 40 mm when running a new product size on a packaging or handling line.
Light-Duty Positioning
Leverage the 402 N push force at 0.5 MPa for precise, lighter-duty actuation where exact end-of-stroke placement is critical.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-40 the Right Cylinder?
Choose this 32 mm bore adjustable-stroke cylinder when your application requires exact end-position tuning during machine setup or product changeover, avoiding the need to bolt on external stops. If your process demands higher thrust, stepping up to the 40 mm bore increases the 0.5 MPa push force to 628 N. Conversely, if the 80-120 mm window is excessive, a smaller adjustment code provides a tighter trim range.
Because the 120 mm stroke is under 300 mm, side-load risks are minimized, though long unsupported loads still require an external guide. For load-holding without continuous air pressure, this standard SAIJ adjuster will not suffice; consider the SAIL pneumatic lock or BSAI clamp-lock series instead. This model is dimensionally interchangeable per ISO 15552 and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ32BX120-40 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the 120 mm nominal stroke by up to 40 mm, providing an effective travel window of 80 to 120 mm for fine-tuning at commissioning.
At 0.5 MPa operating pressure, this double-acting cylinder provides 402 N of push force and 345 N of pull force, reaching a maximum of 82 kgf at 1.0 MPa.
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Covers non-human-caused product damage.
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