Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-40S 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 SAIJ32BX400-40S
The AirTAC SAIJ32X400-40-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a 12mm SUS304 stainless steel rod. The built-in rear stopper allows you to trim the 400mm nominal stroke back by up to 40mm, creating a precise 360-400mm usable travel window for exact end-position tuning.
This variant includes a magnet for position sensing and uses a PT G1/8 port. Because it is an extruded aluminum profile cylinder, it provides sensor grooves on both sides for flexible switch mounting. You can fine-tune the retract position at commissioning without swapping out the entire unit or fabricating external stops.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-40S |
|---|---|
| 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 SAIJ32BX400-40S
| 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 SAIJ32BX400-40S Is Used
Product Changeover
Dial in the 360-400mm stroke window during format size changes on a packaging line without replacing the cylinder or adding shims.
End-Position Tuning
Fine-tune the exact retract distance during machine commissioning to perfect the pickup point for delicate components.
Variable End Stops
Adjust the rear stopper on the fly to accommodate different product lengths moving down an automated conveyor.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX400-40S the Right Cylinder?
Choose this 32mm bore when an application requires 402N of thrust at 0.5 MPa but needs on-the-fly end-position adjustments across a 360-400mm window. If your setup demands greater force, stepping up to the 40mm bore yields 628N at 0.5 MPa. The 400mm stroke on this 12mm rod is substantial, so an external guide is recommended to prevent excessive side-loading and rod deflection over that travel distance.
This model uses a SUS304 stainless steel rod for superior corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2. Note that the rear adjuster acts strictly as a travel stop and does not hold the load without live air; for positive load-holding without pressure, consider the SAIL or BSAI series.
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 SAIJ32BX400-40S FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the 400mm nominal stroke by up to 40mm. This provides a usable travel window of 360-400mm, which can be fine-tuned during commissioning or product changeovers without changing the cylinder itself.
At 0.5 MPa operating pressure, it provides 402N of push force and 345N of pull force. At the maximum 1.0 MPa pressure, the push force reaches 801N.
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