Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-75S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 85mm 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
- Stroke85 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-75S
The AirTAC SAIJ32X85-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. With a nominal 85 mm stroke and a 75 mm adjustment range, it provides a usable travel window of 10 to 85 mm. This allows you to fine-tune the retract end position at commissioning without swapping the cylinder or adding external stops. It delivers 402 N of push force at 0.5 MPa and uses a G1/8 port.
This -S configuration includes a magnet for CMSE reed and DMSE electronic sensors, fitting into the dual-side sensor grooves of the extruded aluminum barrel. The rod is constructed from SUS420J2 stainless steel (code A) for corrosion resistance, and the PT tapered ports ensure secure threading. The rear adjuster acts strictly as a travel stop to decelerate the load, not as a lock to hold it without live air.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-75S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 85 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 SAIJ32AX85-75S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×85 | 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 SAIJ32AX85-75S Is Used
Machine Changeovers
Dial in the exact retract distance from 10 to 85 mm on the fly when switching between product sizes on a packaging line.
End-Stop Tuning
Fine-tune the final end position during commissioning without machining external stopper blocks or changing the cylinder.
Test Fixtures
Vary the stroke travel for different test sample heights, using the rear screw to set precise, repeatable retraction limits.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX85-75S the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N of thrust at 0.5 MPa (or 563 N at 0.7 MPa) and highly variable end-stops. If you need less force, stepping down is not an option below 32 mm in this series, but stepping up to a 40 mm bore yields 628 N at 0.5 MPa. The 75 mm adjustment range is ideal for machines handling frequent product-size changeovers, replacing the need for fixed-stroke SAI cylinders when end-position flexibility is critical. Mounting options include the reduced SAIJ set: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). For any load-holding requirements without live air pressure, this cylinder is insufficient; consider the SAIL or BSAI series instead.
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 SAIJ32AX85-75S FAQ
It features a rear adjusting screw that shortens the effective stroke by up to 75 mm. This gives the 85 mm nominal stroke a usable travel window of 10 to 85 mm, allowing precise end-position tuning without external stops.
It provides 402 N of push force and 345 N of pull force at 0.5 MPa. At 0.7 MPa, the push force increases to 563 N.
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Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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