Airtac Adjustable Cylinder SAIJ32 SAIJ32AX225-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX225-20S 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 SAIJ32AX225-20S
The AirTAC SAIJ32X225-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 225 mm stroke that can be fine-tuned backward by up to 20 mm, creating a precise 205-225 mm usable travel window. Delivering 402 N of push force at 0.5 MPa, it is built for compact setups requiring exact end-position tuning during commissioning.
This variant features a SUS420J2 stainless steel rod (code A) for enhanced corrosion resistance and includes a magnet (-S) for CMSE reed and DMSE electronic sensors. It uses a PT G1/8 port and relies on variable air cushions at both ends to decelerate the load. The rear adjuster functions strictly as a travel stop, meaning it will not hold the load safely without continuous live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX225-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX225-20S |
|---|---|
| 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 SAIJ32AX225-20S
| 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 SAIJ32AX225-20S Is Used
Product Size Changeovers
Quickly dial in the 205-225 mm travel window using the rear screw when adapting a packaging line to different carton lengths.
Machine Setup Commissioning
Fine-tune the exact end position during initial installation without adding external mechanical stops to the fixture.
Variable End-Stop Positioning
Adjust the retract distance on the fly for automated test fixtures that require slight positional shifts between runs.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX225-20S the Right Cylinder?
Select this 32 mm bore when an application demands 402 N push force at 0.5 MPa but requires on-the-fly end-stop adjustments without swapping cylinders. If your setup needs less force, stepping down is not an option in this size range, but stepping up to a 40 mm bore yields 628 N. Choose the SAIJ adjustable-stroke design over a fixed SAI model when you anticipate product changeovers or need to dial in a precise 205-225 mm stroke during machine commissioning.
For a true ISO 15552 replacement, match the 32 mm bore, 225 mm stroke, 20 mm adjustment, PT G1/8 port, and -S magnet. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2. Because the 225 mm stroke is relatively long for this compact bore, always use an external guide to support the load and prevent excessive side-loading on the 12 mm rod. If you need to hold position without air pressure, use an external rod lock or select an AirTAC SAIL or BSAI cylinder 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 SAIJ32AX225-20S 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 its maximum 1.0 MPa pressure, it delivers up to 82 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the 225 mm nominal stroke by up to 20 mm, providing a usable travel range of 205-225 mm. It only sets the end position and does not lock the load without live air.
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