Airtac Adjustable Cylinder SAIJ32 SAIJ32BX35-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX35-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 35mm 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
- Stroke35 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX35-20S
The AirTAC SAIJ32X35-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that lets you dial back the nominal 35 mm travel by up to 20 mm, creating a highly versatile 15-35 mm usable stroke window. Delivering 402 N of push force at 0.5 MPa, it is equipped with a SUS304 stainless steel rod for superior corrosion resistance and includes a magnetic piston for position sensing.
This adjustable design eliminates the need to physically swap cylinders or bolt on external stops during machine commissioning or product changeovers. It features a PT tapered port thread, integrated variable air cushions at both ends, and extruded aluminum barrel with sensor grooves on both sides for flexible CMSE or DMSE switch mounting.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX35-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX35-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 35 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 SAIJ32BX35-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×35 | 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 SAIJ32BX35-20S Is Used
Machine Changeover
Dial in the exact end-stop position when switching between product sizes on a packaging line without changing the cylinder.
Gripping Setup
Fine-tune the retraction point during commissioning to prevent crushing delicate components in automated handling.
Sensor Integration
Leverage the magnetic piston and dual sensor grooves to mount CMSE or DMSE switches precisely along the travel path.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX35-20S the Right Cylinder?
Choose this 32 mm bore when an application requires precise end-position tuning within a 15-35 mm travel window, rather than committing to a fixed-stroke SAI cylinder. If your process demands higher thrust, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa, but for compact assemblies needing fine-tuned short strokes, this model is ideal. Remember that the rear adjuster acts only as a travel stop; it does not hold the load without live air pressure. For load-holding requirements, consider the SAIL or BSAI series instead.
To match this ISO 15552 interchangeable cylinder for a replacement, verify the 32 mm bore, 35 mm base stroke, 20 mm adjustment range, PT port thread, and the -S magnet option. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2, intentionally omitting FB, CA, CB, and CR brackets.
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 SAIJ32BX35-20S FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. It operates at a speed range of 30-800 mm/s.
The rear adjuster screw allows you to shorten the 35 mm nominal stroke by up to 20 mm, giving a usable travel window of 15 to 35 mm. It acts as a mechanical stop and does not lock the load without live air pressure.
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