Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 425mm 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
- Stroke425 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100S
The AirTAC SAIJ32X425-100-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 325 to 425 mm, letting you dial back the standard 425 mm stroke by up to 100 mm during commissioning without adding external stops. In the 32 mm bore class, it generates 402 N of push thrust and 345 N of pull thrust at 0.5 MPa operating pressure.
This variant includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and features a built-in magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides. The rear adjuster acts strictly as a mechanical stop to fine-tune the end position; it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 425 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 SAIJ32AX425-100S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×425 | 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 SAIJ32AX425-100S Is Used
Machine Changeover
Dial in the exact end-stop position between 325 and 425 mm when switching production lines to accommodate different product lengths without physically swapping the cylinder.
End-Position Tuning
Fine-tune the retract stroke during initial commissioning to perfectly time the 12 mm rod extension against mechanical stops, avoiding the need for custom spacer shims.
Variable Product Routing
Adjust the travel window on the fly for diverter gates handling varying package sizes, ensuring precise positioning without reprogramming the motion controller.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100S the Right Cylinder?
Choose this adjustable model when a fixed-stroke SAI cylinder cannot accommodate product size changeovers or fine end-position tuning on a 425 mm travel machine. The 32 mm bore provides 402 N push force at 0.5 MPa; if your application requires less force, dropping to a smaller bore is an option, but if you need higher clamping power, stepping up to the 40 mm bore yields 628 N at 0.5 MPa. Because the 425 mm stroke is relatively long for a 12 mm rod diameter, an external guide is recommended to prevent excessive side-load wear.
For an exact ISO 15552 dimensional replacement, match the 32 mm bore, 425 mm stroke, 100 mm adjustment range, PT tapered port threads, and -S magnet. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options. If your process requires the cylinder to hold its position without continuous live air, note that the SAIJ adjuster is only a stop; you should instead use an AirTAC SAIL pneumatic lock, BSAI clamp-lock, or an external rod lock.
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 SAIJ32AX425-100S 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 the maximum 1.0 MPa pressure, it achieves 82 kgf.
The rear mechanical stopper allows you to shorten the effective travel from the nominal 425 mm down to a minimum of 325 mm. This creates a 325-425 mm adjustable window for fine-tuning the end position at commissioning, but it functions as a stop and does not lock the load without live air.
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