Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75 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 SAIJ32BX85-75
The AirTAC SAIJ32X85-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position without swapping out the unit. It provides a usable travel window of 10-85 mm, giving you massive flexibility to trim the nominal 85 mm stroke by up to 75 mm during commissioning. Belonging to the 32 mm bore class, it delivers 402 N of push force at 0.5 MPa and utilizes a G1/8 port.
This model is configured with a SUS304 stainless steel rod (code B) for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing you to easily add CMSE reed or DMSE electronic sensors if position feedback is required later. The rear screw acts purely as a travel stop for deceleration and end-position setting, meaning it will not hold a load without continuous live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75 |
|---|---|
| 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 SAIJ32BX85-75
| 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 SAIJ32BX85-75 Is Used
Machine Changeover
Dial in the 10-85 mm travel window during product size changeovers to set new retract endpoints instantly without changing the cylinder.
End-Position Tuning
Fine-tune the final retract position during commissioning to avoid mechanical hard stops and perfect the timing of your assembly process.
Variable End Stops
Use the 75 mm adjustment range to create variable end-stops for testing different gripping distances on prototype tooling.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75 the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N of push force at 0.5 MPa; if you need less force, step down to a smaller bore, or step up to the 40 mm bore (628 N push) for heavier loads. An adjustable stroke is highly beneficial here because the massive 75 mm trim range allows a single cylinder to accommodate multiple product sizes on the same machine line without adding external stops. For securing the load mechanically without live air, you would need a different unit like the SAIL or BSAI, as the SAIJ adjuster is strictly a stop. When replacing an ISO 15552 cylinder, match the 32 mm bore, 85 mm stroke, 75 mm adjustment, PT port, and mounting choice (Basic, FA, LB, TC, FTC, TCM1, or TCM2).
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 SAIJ32BX85-75 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. At 0.7 MPa, the push force increases to 563 N.
The rear adjuster screw lets you shorten the effective stroke by up to 75 mm from the nominal 85 mm, providing a usable travel window of 10 to 85 mm. It functions as a physical stop to set the end position and does not lock the load.
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