Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 400mm 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
- Stroke400 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-20S
The AirTAC SAIJ32X400-20-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 380 to 400 mm. Delivering 402 N of push force at 0.5 MPa, it features a SUS420J2 stainless steel rod for enhanced corrosion resistance and a built-in magnet for CMSE reed and DMSE electronic sensors.
This adjustable-stroke design allows you to fine-tune the retract end position during commissioning without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting interface supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 brackets.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 400 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 SAIJ32AX400-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×400 | 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 SAIJ32AX400-20S Is Used
End-Stop Calibration
Dial in the exact 380 to 400 mm retract position during machine commissioning without swapping out the entire actuator.
Product Changeover
Quickly adjust the stroke by up to 20 mm to accommodate varying package sizes on a packaging line.
Sensor Positioning
Leverage the built-in magnet and dual sensor grooves to mount CMSE or DMSE switches exactly where needed.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX400-20S the Right Cylinder?
Choose this 32 mm bore when an application requires precise end-position tuning within a 380-400 mm window. If your setup needs greater thrust, stepping up to the 40 mm bore yields 628 N at 0.5 MPa. Because this model features a 400 mm stroke, an external guide is recommended to prevent excessive side loading on the 12 mm rod. The PT tapered port and M10x1.25 rod thread are standard for this bore size.
The rear adjuster acts strictly as a travel stop and does not hold the load without live air pressure; for positive load-holding, consider an external rod lock or the SAIL series. This SAIJ model is dimensionally interchangeable per ISO 15552, offering a direct drop-in replacement for standard profile cylinders.
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 SAIJ32AX400-20S 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 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw allows you to trim the effective stroke back by up to 20 mm from the nominal 400 mm, creating a 380-400 mm travel window. It functions as a hard stop for end-position tuning and is not a locking mechanism.
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