Airtac Adjustable Cylinder SAIJ32 SAIJ32BX115-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX115-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 115mm 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
- Stroke115 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX115-40
The AirTAC SAIJ32X115-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window between 75 and 115 mm without adding external stops. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads.
This adjustable unit uses the standard SAI mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) but omits FB, CA, CB, and CR brackets. The rear adjustment screw acts purely as a mechanical stop to set the retract end position, meaning it will not hold a load without continuous live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX115-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX115-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 115 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 SAIJ32BX115-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×115 | 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 SAIJ32BX115-40 Is Used
Machine Changeover
Dial in the 75-115 mm travel window during product size transitions to set new retract endpoints without swapping hardware.
End-Position Tuning
Fine-tune the final retract position at commissioning using the rear stopper to absorb mechanical tolerances in the fixture.
Compact Assembly Lines
Utilize the 32 mm bore's 402 N push force in space-constrained ISO 15552 footprints where external stops cannot fit.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX115-40 the Right Cylinder?
Choose this 32 mm bore when your application requires precise end-position tuning during commissioning or product changeover, stepping up from a smaller bore if you need more than the 402 N push force available at 0.5 MPa. The 12 mm rod and M10x1.25 thread provide adequate rigidity, but because the stroke is 115 mm, ensure proper guidance to prevent excessive side-loading on the rod.
If your machine requires fail-safe load holding without air pressure, this cylinder is not suitable; consider the SAIL or BSAI series instead. To match this ISO 15552 interchangeable cylinder, specify a 32 mm bore, 115 mm stroke, up to 40 mm adjustment, PT G1/8 ports, no magnet, and the SUS304 (B) rod option.
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 SAIJ32BX115-40 FAQ
The nominal stroke is 115 mm, but the rear adjuster allows you to trim the travel back by up to 40 mm, providing an adjustable usable stroke window of 75 to 115 mm.
At 0.5 MPa operating pressure, the 32 mm bore generates 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it can output up to 82 kgf.
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