Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 140mm 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
- Stroke140 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-40S
The AirTAC SAIJ32X140-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to trim the effective travel back by up to 40 mm, creating a precise 100-140 mm usable window. Delivering 402 N of push force at 0.5 MPa, it is built with a SUS304 stainless steel rod for superior corrosion resistance and pairs with PT tapered port threads.
This adjustable-stroke design eliminates the need to swap cylinders or add external stops during machine commissioning or product changeovers. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet enables seamless position detection with AirTAC CMSE reed or DMSE electronic solid-state switches.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 140 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 SAIJ32BX140-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×140 | 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 SAIJ32BX140-40S Is Used
Machine Setup Tuning
Dial in the exact 100-140 mm retract position during commissioning without physically swapping the cylinder or machining external stop blocks.
Product Changeover
Quickly adapt the stroke end-point on a packaging line when handling slightly different carton sizes, saving minutes of retooling time.
End-Position Trimming
Fine-tune the final retract stop to compensate for mechanical wear or sensor drift over the machine's lifecycle.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-40S the Right Cylinder?
Choose this 32 mm bore when you need 402 N of push force at 0.5 MPa and variable end-stops; step up to a 40 mm bore if your application requires 628 N. The SAIJ32X140-40-S is selected over a fixed-stroke SAI when the exact retract position must be dialed in at setup. Note that the rear adjuster acts only as a travel stop and does not hold the load without live air—use an AirTAC SAIL or BSAI cylinder for fail-safe load holding. For direct ISO 15552 replacement, match the 32 mm bore, 140 mm nominal stroke, 40 mm adjustment, PT G1/8 port, and -S magnet 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 SAIJ32BX140-40S FAQ
The rear adjuster screw acts as a mechanical stop that can shorten the nominal 140 mm stroke by up to 40 mm, giving you an effective travel range of 100-140 mm. It functions as an end-position stop and does not lock the load without continuous air pressure.
At an operating pressure of 0.5 MPa, the SAIJ32X140-40-S generates 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.
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