Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 40mm 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
- Stroke40 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40
The AirTAC SAIJ32X40-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It delivers 402N of push force at 0.5 MPa and provides a usable travel window of 0-40mm, allowing you to dial in the exact end position without adding external stops. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This configuration uses an SUS420J2 stainless steel rod (material code A) for enhanced corrosion resistance compared to standard carbon steel. It features PT tapered port threads and operates at speeds between 30 and 800 mm/s. The rear adjuster functions strictly as a travel stop to fine-tune deceleration, not as a lock to hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 40 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 SAIJ32AX40-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×40 | 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 SAIJ32AX40-40 Is Used
Precision End-Stop Tuning
Dial in the exact 0-40mm travel window during machine commissioning to perfect positioning without swapping out cylinders or adding external stopper blocks.
Rapid Product Changeover
Quickly adjust the rear stopper screw when changing product sizes on a packaging line, reducing downtime and avoiding the need for custom fixed-stroke actuators.
Corrosion-Resistant Actuation
Leverage the SUS420J2 stainless steel rod for light manufacturing tasks that require repeatable, adjustable end positions with moderate 402N force output.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40 the Right Cylinder?
Choose this 32mm bore when your application requires precise mechanical end-position tuning at commissioning or during product changeovers, replacing the need for fixed-stroke SAI cylinders. If your setup needs more force, stepping up to the 40mm bore yields 628N of push force at 0.5 MPa. To match this ISO 15552 dimensionally interchangeable cylinder, confirm the 40mm stroke, 40mm adjustment range, PT port threads, and SUS420J2 rod material.
Because the stroke is under 300mm, side-load stress on the 12mm rod is manageable, but an external guide remains recommended for heavy lateral loads. For applications requiring the load to be held mechanically without continuous air pressure, a plain SAIJ is insufficient; consider the SAIL (air-released lock) or BSAI (clamp-lock) series 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 SAIJ32AX40-40 FAQ
The rear adjuster acts as a mechanical stop, allowing you to trim the effective travel anywhere within a 0-40mm window. It sets the end position and works with the air cushion for deceleration, but it does not lock the load without live air pressure.
At 0.5 MPa operating pressure, the SAIJ32X40-40 provides 402N of push force and 345N of pull force. It can reach a maximum push force of 724N at 0.9 MPa.
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