Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-75 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 SAIJ32BX140-75
The AirTAC SAIJ32X140-75 is a double-acting, adjustable-stroke ISO 15552 profile cylinder. It features a 32 mm bore and a 140 mm nominal stroke, but an integrated rear stopper screw lets you dial the effective travel back by up to 75 mm. This creates a highly flexible 65-140 mm usable stroke window, allowing precise end-position tuning at commissioning without swapping out the unit. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty tasks requiring exact positioning.
This variant is built with a SUS304 stainless steel rod (option B) for superior corrosion resistance in washdown or humid settings. The PT tapered port thread measures G1/8, and the extruded aluminum barrel includes sensor grooves on both sides for mounting CMSE reed or DMSE electronic switches. The rear adjuster acts purely as a travel stop to set deceleration limits, meaning it will not hold a load dynamically without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-75 |
|---|---|
| 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 SAIJ32BX140-75
| 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 SAIJ32BX140-75 Is Used
Variable End-Stop Setup
Ideal for packaging lines where the rear screw adjusts the retract position on the fly to handle varying carton dimensions without changing hardware.
Machine Changeover
Speeds up product family changeovers by allowing operators to fine-tune the 65-140 mm travel window directly at the cylinder rather than repositioning external stops.
Corrosion-Resistant Actuation
The SUS304 stainless steel rod makes this cylinder suitable for food processing or light chemical handling environments where moisture is present.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX140-75 the Right Cylinder?
Select this 32 mm bore model when an application requires a variable end-stop within a 65-140 mm travel range, such as accommodating multiple product sizes on a single conveyor line. If your setup needs greater thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Conversely, if you only need a fixed travel distance, the standard SAI cylinder offers a simpler setup. Because the stroke here is 140 mm, side-load risks are minimal, but always guide the load properly to prevent rod binding.
For an exact ISO 15552 replacement match, verify the 32 mm bore, 140 mm nominal stroke, 75 mm adjustment range, PT G1/8 port, and SUS304 rod material. Note that SAIJ supports a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR mounts. This unit lacks a magnet; if position feedback is needed, choose the -S option for CMSE or DMSE sensor compatibility.
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 SAIJ32BX140-75 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 a maximum thrust of 82 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that shortens the nominal 140 mm stroke by up to 75 mm, giving a usable travel window of 65 to 140 mm. It functions as a travel stop and does not lock the load without live air pressure.
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