Airtac Adjustable Cylinder SAIJ32 SAIJ32AX75-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX75-40S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 75mm 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
- Stroke75 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX75-40S
The AirTAC SAIJ32X75-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a nominal 75 mm stroke that can be dialed back by up to 40 mm, yielding a highly flexible 35-75 mm usable travel window for precise end-position tuning during commissioning. Delivering 402 N of push force at 0.5 MPa, it suits lighter-duty tasks.
This variant includes a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and features a built-in magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel includes sensor grooves on both sides, and fluid is supplied via PT tapered ports. The rear adjuster acts purely as a travel stop to set deceleration, not as a lock to hold loads without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX75-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX75-40S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 75 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 SAIJ32AX75-40S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×75 | 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 SAIJ32AX75-40S Is Used
Machine Changeover
Dial in the 35-75 mm travel window during product size changeovers to set new end-stops without replacing the cylinder or adding external mechanical stops.
End-Position Tuning
Fine-tune the retract end-position at commissioning using the rear adjuster, compensating for mechanical tolerances in the fixture without machining new parts.
Light Assembly Stations
Drive small pneumatic presses and clamps where 402 N of push force is sufficient, utilizing the SUS420J2 rod for environments with minor moisture exposure.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX75-40S the Right Cylinder?
Choose this 32 mm bore when an application requires 402 N push force (0.5 MPa) but demands on-the-fly stroke trimming without swapping cylinders or adding external stops. If your process requires greater thrust, stepping up to the 40 mm bore yields 628 N of push force. The 40 mm adjustment range is ideal for accommodating multiple product sizes on a single machine, replacing the need for fixed-stroke SAI cylinders when exact end-stops vary.
For ISO 15552 replacement matching, verify the 32 mm bore, 75 mm stroke, 40 mm adjustment, PT port thread, and the -S magnet requirement. Mounting options are limited to the SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). Because the 75 mm stroke is relatively short, side-load risks are minimal, but ensure the 12 mm rod and M10x1.25 thread are aligned to prevent binding.
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 SAIJ32AX75-40S FAQ
The rear adjuster screw acts as an external stopper that shortens the effective stroke by up to 40 mm. This creates a usable travel window of 35 to 75 mm, allowing you to trim the retract end-position without replacing the cylinder.
At 0.5 MPa operating pressure, the SAIJ32X75-40-S provides 402 N of push force and 345 N of pull force. It can reach 724 N of push force at its maximum 0.9 MPa pressure.
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