Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75S 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 SAIJ32BX120-75S
The AirTAC SAIJ32X120-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to fine-tune the effective travel down to a 45-120 mm window from its 120 mm nominal stroke. Delivering 402 N of push force at 0.5 MPa, it suits light-duty positioning tasks. This variant features a SUS304 stainless steel rod for corrosion resistance and includes a magnet for position sensing.
It uses a PT tapered port and offers variable air cushions at both ends to manage deceleration. The extruded aluminum barrel includes sensor grooves on both sides, directly supporting AirTAC CMSE reed and DMSE electronic switches. Remember that the rear adjuster acts purely as a travel stop, so it will not hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75S |
|---|---|
| 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 SAIJ32BX120-75S
| 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 SAIJ32BX120-75S Is Used
Machine Setup
Dial in the exact 45-120 mm travel window during commissioning without physically swapping cylinders or adding external stopper blocks.
Product Changeover
Quickly adapt end positions on a packaging line when product sizes change, using the rear adjuster to fine-tune the stroke.
Variable End Stops
Use the 75 mm trim range to set precise retract limits for light-duty assembly tasks requiring flexible positioning.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX120-75S the Right Cylinder?
Choose this 32 mm bore when 402 N of thrust at 0.5 MPa is sufficient, or step up to the 40 mm bore if you need 628 N. The 75 mm adjustment range is ideal for product changeovers where the exact end position varies, saving you from swapping a fixed-stroke SAI cylinder or adding external stops. For a drop-in ISO 15552 replacement, match the 32 mm bore, 120 mm stroke, PT port, and SUS304 rod. If your application requires true load holding without 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 SAIJ32BX120-75S FAQ
It provides 402 N of push force and 345 N of pull force at 0.5 MPa. The operational speed range for this 32 mm bore cylinder is 30-800 mm/s.
The rear adjuster acts as a mechanical stop that trims the 120 mm nominal stroke back by up to 75 mm, creating a usable travel window of 45-120 mm. It is a travel stop, not a lock, and cannot hold a load without live air.
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