Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40S 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 SAIJ32AX40-40S
The AirTAC SAIJ32X40-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 40 mm nominal stroke that can be dialed back by up to 40 mm, yielding a highly versatile 0 to 40 mm usable travel window for exact end-position tuning. Delivering 402 N of push force at 0.5 MPa, it suits light-duty positioning. This variant includes a SUS420J2 stainless steel rod for enhanced corrosion resistance and a PT tapered port thread.
Equipped with a magnet for CMSE and DMSE sensors, it integrates smoothly into automation control systems. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. Remember the rear adjuster acts purely as a mechanical stop to decelerate travel; it is not a lock and will not hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40S |
|---|---|
| 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 SAIJ32AX40-40S
| 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 SAIJ32AX40-40S Is Used
Machine Setup & Changeover
Dial in the exact 0-40 mm retract position during commissioning or product size transitions without physically swapping cylinders.
Light-Duty Positioning
Provides 402 N of push force for small actuators and stops, with a SUS420J2 stainless rod for corrosion resistance.
Variable End-Stop Assembly
Creates a flexible end-stop mechanism for testing varying part lengths on a single fixture, using the rear screw to trim travel.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX40-40S the Right Cylinder?
Choose this 32 mm bore when an application requires 402 N of thrust at 0.5 MPa but demands on-the-fly end-stop tuning rather than a fixed distance. If your setup needs slightly more power, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. The 0-40 mm adjustable window is perfect for product changeovers, allowing you to fine-tune the retract position at commissioning without swapping the cylinder or adding external stops.
For an exact ISO 15552 replacement, match the 32 mm bore, 40 mm stroke, PT port thread, and the -S magnet requirement. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options, omitting the FB, CA, CB, and CR footprints. Because the stroke is under 300 mm, side-load stress is minimal, though the 12 mm rod still requires linear guidance for heavy lateral loads. For load-holding without live air, consider 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 SAIJ32AX40-40S FAQ
The rear adjuster screw lets you shorten the 40 mm nominal stroke by up to 40 mm, giving a usable travel window of 0 to 40 mm. This allows precise end-position tuning at commissioning without external stops.
At 0.5 MPa operating pressure, it provides 402 N of push force and 345 N of pull force. The maximum thrust is 82 kgf at 1.0 MPa.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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