Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-40 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 SAIJ32BX40-40
The AirTAC SAIJ32X40-40 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 0-40 mm, allowing you to dial in the exact end-position without adding external stops. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This variant uses a SUS304 stainless steel rod for superior corrosion resistance and includes PT tapered port threads. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. Note that the rear adjuster acts purely as a travel stop and does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-40 |
|---|---|
| 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 SAIJ32BX40-40
| 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 SAIJ32BX40-40 Is Used
Product Changeover
Quickly dial in the 0-40 mm travel window during line changeovers to accommodate new product sizes without swapping the cylinder.
End-Position Tuning
Fine-tune the retract end-position during commissioning using the rear stopper, eliminating the need for external mechanical stops.
Fixture Actuation
Ideal for compact clamping fixtures where the 402 N thrust at 0.5 MPa is sufficient and precise variable end-stops are required.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX40-40 the Right Cylinder?
Choose this 32 mm bore model when your application requires 402 N of push force at 0.5 MPa and highly precise 0-40 mm travel tuning. If you need greater thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. An adjustable stroke is preferred over a fixed SAI cylinder when you need on-the-fly end-position changes during machine setup or product changeover.
Because the stroke is 40 mm, side-load risks are minimal, but always ensure the load is guided. For load-holding without live air, this plain SAIJ is insufficient; consider the SAIL (air-released lock) or BSAI (clamp-lock) variants instead. To match this ISO 15552 cylinder, specify: 32 mm bore, 40 mm stroke, 40 mm adjustment, PT port, Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting, and no magnet.
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 SAIJ32BX40-40 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach up to 724 N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that lets you trim the effective travel back from 40 mm down to 0 mm. It sets the end-position but does not lock or hold the load without continuous air pressure.
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