Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-30
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-30 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 SAIJ32BX85-30
The AirTAC SAIJ32X85-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position without adding external stops. With a nominal 85 mm stroke and a 30 mm adjustment screw, it provides a usable travel window of 55 to 85 mm. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa, making it well-suited for lighter-duty positioning tasks.
This variant uses a SUS304 stainless steel rod (option B) for superior corrosion resistance and features PT tapered port threads (G1/8). The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Remember that the rear adjuster acts only as a travel stop to decelerate the load; it does not hold position without live air pressure. For load-holding applications without continuous air, consider the SAIL or BSAI series.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-30 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-30 |
|---|---|
| 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 SAIJ32BX85-30
| 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 SAIJ32BX85-30 Is Used
Machine Changeover
Dial in the 55-85 mm travel window during product size changeovers to set new end positions rapidly without physically swapping the cylinder.
End-Stop Tuning
Use the 30 mm rear adjuster to fine-tune the retract end position during initial commissioning, eliminating the need for external mechanical stops.
Light Transfer Handling
Leverage the 402 N push force at 0.5 MPa to actuate lightweight conveyor diverter arms, adjusting the stroke on the fly for varying package sizes.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-30 the Right Cylinder?
Choose this 32 mm bore adjustable cylinder when your application requires precise end-position tuning during commissioning or product changeover, stepping down from a 40 mm bore (which provides 628 N push force at 0.5 MPa) to save space and optimize cycle speed. The adjustable stroke is ideal for variable end stops, but if your process requires a fixed travel distance, the standard SAI series is a simpler alternative. Because the total stroke is under 300 mm, side-load stress on the 12 mm rod is manageable, though external guides are still recommended for heavy lateral loads. Ensure your setup matches the ISO 15552 mounting interface dimensions, utilizing the available Basic, FA, LB, TC, FTC, TCM1, or TCM2 mounting accessories. Note that this configuration uses PT tapered ports and lacks a magnet for position sensing.
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 SAIJ32BX85-30 FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It can reach a maximum of 82 kgf at 1.0 MPa.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective travel from the nominal 85 mm down to as little as 55 mm, creating a 55-85 mm usable window. It only sets the travel end and does not lock the load without live air pressure.
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