Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-50S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 225mm 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
- Stroke225 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-50S
The AirTAC SAIJ32X225-50-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, enabling a usable travel window of 175 to 225 mm. It delivers 402 N of push force and 345 N of pull force at 0.5 MPa, utilizing a 12 mm carbon steel piston rod. The integrated magnet (-S) supports position sensing with AirTAC CMSE reed and DMSE solid-state switches.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR brackets found on other ISO lines.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-50S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 225 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 SAIJ32BX225-50S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×225 | 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 SAIJ32BX225-50S Is Used
Machine Setup Changeover
Dial in the exact retract distance within the 175-225 mm window during product size transitions without machining new hard stops.
Variable End-Stop Positioning
Fine-tune the final end-of-stroke position on testing fixtures to compensate for mechanical wear or sensor drift.
Adjustable Reject Arm
Adjust the push-back depth on a sorting conveyor to handle varying package lengths on the fly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX225-50S the Right Cylinder?
Choose this 32 mm bore when your application requires precise end-position tuning during commissioning or product changeover without swapping the physical cylinder or adding external stops. If your process needs higher force, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. For lighter duties, a 32 mm bore is often the most compact ISO 15552 footprint available.
The rear adjuster acts strictly as a mechanical travel stop and deceleration point; it does not hold the load without live air pressure. For true fail-safe load holding, consider the AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinders. Because the 225 mm stroke is relatively long for a 32 mm bore, ensure external guidance is used to prevent excessive rod side-loading.
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 SAIJ32BX225-50S FAQ
The rear adjuster screw allows you to shorten the nominal 225 mm stroke by up to 50 mm, providing an effective travel range of 175 to 225 mm. This allows fine-tuning of the end position at commissioning without adding external stops.
At a standard 0.5 MPa operating pressure, it 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.
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