Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-20 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 SAIJ32BX85-20
The AirTAC SAIJ32X85-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 65 to 85 mm, allowing you to dial back the 85 mm nominal stroke by up to 20 mm during commissioning. It delivers a 402 N push force at 0.5 MPa and operates at speeds of 30-800 mm/s.
This unit is built with a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, and the mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2 options.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-20 |
|---|---|
| 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 SAIJ32BX85-20
| 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 SAIJ32BX85-20 Is Used
End-Position Tuning
Dial in the exact retract distance between 65 and 85 mm during machine commissioning without installing external physical stops.
Product Changeover
Quickly adapt the cylinder stroke on packaging lines when handling slightly different package lengths.
Corrosive Environments
Leverage the SUS304 stainless steel rod for reliable actuation in food processing or light chemical handling areas.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-20 the Right Cylinder?
Choose this 32 mm bore when your application requires 402 N of push force at 0.5 MPa, or step up to the 40 mm bore for 628 N if your load demands it. The adjustable stroke is ideal for fine-tuning end positions without swapping cylinders or adding external stops. Note that the rear adjuster is a travel stop, not a lock; it will not hold the load without live air. For position holding, consider the SAIL or BSAI series. This cylinder is dimensionally interchangeable per ISO 15552.
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 SAIJ32BX85-20 FAQ
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke by up to 20 mm. This provides a usable travel window of 65 to 85 mm, allowing fine-tuning of the end position without changing the cylinder.
At a 0.5 MPa operating pressure, the SAIJ32X85-20 provides a push force of 402 N and a pull force of 345 N. At 0.7 MPa, the push force increases to 563 N.
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