Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-40
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-40 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 SAIJ32BX75-40
The AirTAC SAIJ32X75-40 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 75 mm stroke that can be fine-tuned down by up to 40 mm, yielding a usable travel window of 35-75 mm to perfectly dial in retract end positions. In the compact 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This variant features a SUS304 stainless steel rod (code B) for superior corrosion resistance and uses PT tapered port threads with a G1/8 connection. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic switches if a magnet is added later. Mounting options are limited to Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR styles.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-40 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-40 |
|---|---|
| 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 SAIJ32BX75-40
| 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 SAIJ32BX75-40 Is Used
Machine Changeover
Dial in the 35-75 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 at commissioning to perfect the timing of a 402 N push force assembly task.
Variable End Stops
Use the rear adjuster to safely vary the stroke limit on small clamping fixtures where a fixed 75 mm stroke would be too long.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX75-40 the Right Cylinder?
Select this 32 mm bore actuator when you need precise retract positioning without adding external stops; if you need less force, a smaller option is unavailable in this series, but stepping up to a 40 mm bore yields 628 N of push force at 0.5 MPa. Choose the SAIJ adjustable format over the fixed-stroke SAI when a machine requires product-size changeovers that shift the end-stop. To match this exact configuration for an ISO 15552 replacement, specify a 32 mm bore, 75 mm stroke, 40 mm adjustment, PT G1/8 port, SUS304 rod, and no magnet.
Remember that the rear adjuster functions strictly as a travel stop and does not hold the load without live air pressure; for dead-air load holding, consider an external pilot-operated check valve or the SAIL lock cylinder. Because the stroke is under 300 mm, side-load risks are minimal, but the 12 mm rod still requires external guidance for heavy lateral loads.
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 SAIJ32BX75-40 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 82 kgf.
The rear adjuster acts as a stopper that lets you shorten the effective stroke by up to 40 mm from the nominal 75 mm, creating a usable travel window of 35-75 mm. It only sets the travel end and does not lock the load without live air.
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