Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-40 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 375mm 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
- Stroke375 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-40
The AirTAC SAIJ32X375-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the effective travel window down to 335-375 mm without adding external stops. It delivers a robust 402 Newtons of push force at 0.5 MPa, making it well-suited for compact automation tasks. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
This model is equipped with a SUS304 stainless steel rod for superior corrosion resistance and features a PT tapered port thread. It supports speeds from 30-800 mm/s and utilizes adjustable air cushions at both ends to decelerate the load smoothly. The rear adjuster acts strictly as a travel stop to dial in the exact end position during commissioning, not as a lock to hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-40 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 375 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 SAIJ32BX375-40
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×375 | 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 SAIJ32BX375-40 Is Used
Machine Changeover
Dial in the 335-375 mm travel window during product size transitions without swapping the cylinder or bolting on external stops.
End-Position Tuning
Fine-tune the retract end position during commissioning to account for mechanical tolerances in the fixture assembly.
Variable End Stops
Adjust the stroke dynamically on a conveyor diverter to handle varying package lengths on the fly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX375-40 the Right Cylinder?
Choose this 32 mm bore if your application requires a maximum 0.5 MPa pull force of 345 Newtons; stepping down is not an option, but stepping up to a 40 mm bore would yield 528 Newtons of pull force if your payload increases. An adjustable-stroke cylinder is selected over a fixed SAI model when you need on-the-fly end-position tuning during machine setup or product changeover. To match this ISO 15552 footprint exactly, specify a 32 mm bore, 375 mm stroke, 40 mm adjustment, PT port, and the SUS304 (B) rod material. Because the 375 mm stroke is relatively long for a 32 mm rod, an external guide is recommended to prevent excessive side-loading on the piston.
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 SAIJ32BX375-40 FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 Newtons of push force and 345 Newtons of pull force. At 0.7 MPa, the push force increases to 563 Newtons.
The rear adjuster screw acts as a mechanical stop that lets you shorten the nominal 375 mm stroke by up to 40 mm, creating a usable travel window of 335-375 mm. It sets the end position but does not hold the load without live air.
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