Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50S 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 SAIJ32BX85-50S
The AirTAC SAIJ32X85-50-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a usable travel window of 35 to 85 mm, allowing you to dial in the exact end position during commissioning without adding external stops. The 32 mm bore delivers 402 N of push force at 0.5 MPa, making it suited for lighter-duty tasks.
This configuration includes a SUS304 stainless steel rod for superior corrosion resistance and a magnet for CMSE or DMSE sensors. It uses PT tapered port threads and achieves speeds of 30-800 mm/s. The adjuster acts purely as a mechanical stop for end-position tuning and does not lock the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50S |
|---|---|
| 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 SAIJ32BX85-50S
| 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 SAIJ32BX85-50S Is Used
Machine Changeover
Quickly adapt the retract end-stop when switching a packaging line to a different product size, trimming the 85 mm stroke back to 35 mm as needed.
Assembly Positioning
Fine-tune the final approach of a small parts press without swapping the cylinder, ensuring precise contact depth on every cycle.
Sensor Calibration
Leverage the integrated magnet and dual sensor grooves to set CMSE or DMSE switches exactly where the adjusted stroke ends.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50S the Right Cylinder?
Choose this adjustable model when your setup requires fine end-position tuning on the fly, whereas a fixed-stroke SAI cylinder locks you into one dimension. If your application demands greater thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Conversely, for lighter loads, the 32 mm bore here is highly efficient.
As an ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders of the same bore. The correct mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). For any load-holding requirements without live air, consider the SAIL or BSAI series, as the SAIJ rear adjuster is strictly a travel stop.
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 SAIJ32BX85-50S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. If operated at 0.7 MPa, the push force increases to 563 N.
The rear adjuster allows you to shorten the nominal 85 mm stroke by up to 50 mm, creating a usable travel window of 35 to 85 mm. It functions as a mechanical stop and does not hold the load without live air.
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