Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-50 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 SAIJ32BX125-50
The AirTAC SAIJ32X125-50 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. By turning the external stopper screw, you can trim the effective travel back by up to 50 mm, creating a precise 75-125 mm usable stroke window for exact end-position tuning. In its base configuration, this unit delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This 32 mm bore variant is built with a SUS304 stainless steel rod for superior corrosion resistance and ships without a piston magnet. It features a PT tapered port thread and relies on a 12 mm rod with an M10x1.25 thread. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to add position feedback later if needed.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-50 |
|---|---|
| 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 SAIJ32BX125-50
| 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 SAIJ32BX125-50 Is Used
Machine Setup & Changeover
Dial in the exact 75-125 mm end-position during commissioning or product size changes without physically swapping the actuator.
Variable End Stops
Ideal for assembly lines processing multiple part lengths, letting operators trim up to 50 mm of travel on the fly.
Corrosive Environments
The SUS304 stainless steel rod option makes this profile cylinder suitable for applications requiring high rust resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX125-50 the Right Cylinder?
Choose this adjustable-stroke model over a fixed SAI cylinder when your application requires frequent machine setup or product changeover, as the rear screw allows you to fine-tune the end position without swapping the cylinder or adding external stops. If your project requires less thrust, stepping down is not an option for this footprint, but if you need significantly more force, a 40 mm bore provides 628 N at 0.5 MPa. Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series. To match this cylinder for an ISO 15552 replacement, specify a 32 mm bore, 125 mm stroke, 50 mm adjustment, PT port, 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 SAIJ32BX125-50 FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. If operated at 0.7 MPa, the push force increases to 563 N.
The rear stopper screw lets you shorten the nominal 125 mm stroke by up to 50 mm, giving a usable travel window of 75 to 125 mm. This adjuster acts only as a mechanical stop and does not lock the load without air pressure.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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