Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75S 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 SAIJ32BX85-75S
The AirTAC SAIJ32X85-75-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5 MPa and features a PT G1/8 port. By turning the rear stopper screw, you can trim the effective travel anywhere within a 10-85 mm window, providing extreme flexibility for machines that process multiple product sizes.
This unit includes a magnetic piston (-S) for position sensing alongside an SUS304 stainless steel rod (code B) for superior corrosion resistance. The extruded aluminum barrel incorporates sensor grooves on both sides, accepting AirTAC CMSE reed or DMSE electronic solid-state switches. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75S |
|---|---|
| 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 SAIJ32BX85-75S
| 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 SAIJ32BX85-75S Is Used
Variable End-Stop Tuning
Dial in the exact retraction point between 10 and 85 mm during commissioning to accommodate different material thicknesses without adding external stopper blocks.
Machine Changeover
Quickly adjust the stroke length on packaging or sorting lines when switching between product sizes, minimizing downtime and avoiding cylinder replacement.
Corrosion-Resistant Actuation
Leverage the SUS304 stainless steel rod in light manufacturing environments where moisture or minor chemical exposure demands higher rust resistance.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX85-75S the Right Cylinder?
Choose this 32mm bore when an application requires fine end-position tuning across a highly variable 10-85 mm travel range without swapping cylinders. If you need greater thrust, stepping up to the 40mm bore yields 628N of push force at 0.5 MPa. Remember that the rear adjuster acts purely as a mechanical stop and does not hold the load without live air; for true load-holding, consider an external rod lock or the AirTAC SAIL series.
To match this exact ISO 15552 replacement, specify a 32mm bore, 85mm nominal stroke, 75mm adjustment range, PT tapered port thread, SUS304 rod material, and the -S magnet option. The 12mm rod and M10x1.25 thread provide adequate rigidity, though any long unsupported stroke still requires an external guide to prevent side-loading damage.
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 SAIJ32BX85-75S FAQ
At 0.5 MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 82 kgf.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the 85mm nominal stroke by up to 75mm. This creates a usable travel window of 10-85 mm, but it does not lock the position without continuous air pressure.
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