Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50 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 SAIJ32BX85-50
The AirTAC SAIJ32X85-50 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a nominal 85mm stroke that can be dialed back by up to 50mm, creating a usable travel window of 35-85mm for precise end-position tuning during commissioning. The 32mm bore delivers 402N of push force at 0.5MPa and 345N of pull force, making it well-suited for lighter-duty manipulation tasks.
This variant features a SUS304 stainless steel rod for corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, allowing direct mounting of position switches. The rear adjustment mechanism functions purely as a travel stop to set the retract end position, so it cannot hold a load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50 |
|---|---|
| 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 SAIJ32BX85-50
| 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 SAIJ32BX85-50 Is Used
End-Stop Calibration
Dial in the exact 35 to 85mm travel window during machine setup to perfect positioning without machining custom spacers.
Product Changeover
Quickly adjust the retract distance on packaging lines to handle varying carton sizes on the fly.
Light Assembly Tasks
Leverage the 402N push force and SUS304 rod for precise, repeatable actuation in smaller-scale manufacturing fixtures.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-50 the Right Cylinder?
Choose this 32mm bore adjustable-stroke cylinder when your application requires exact end-stop tuning without swapping out physical components. If your setup needs greater thrust, stepping up to the 40mm bore provides 628N of push force at 0.5MPa. Because this model features an 85mm stroke, it falls under the 300mm threshold where external side-load guides are typically mandated, though the 12mm rod diameter still necessitates avoiding binding loads.
An adjustable SAIJ is preferred over a fixed-stroke SAI when you need on-the-fly product changeovers or commissioning tweaks. For drop-in compatibility, match the 32mm bore, 85mm stroke, 50mm adjustment range, PT port thread, and Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting interface. Note that this plain SAIJ cylinder does not hold position without continuous air; for true load-holding, select 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 SAIJ32BX85-50 FAQ
At 0.5 MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. It can deliver up to 724N of push force at 0.9 MPa.
The rear adjuster screw acts as a mechanical stop that trims the effective travel back from the 85mm nominal stroke, providing a usable range of 35-85mm. It is a travel stop only and does not lock or hold the load without continuous air pressure.
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