Airtac Adjustable Cylinder SAIJ32 SAIJ32AX35-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX35-20S 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 SAIJ32AX35-20S
The AirTAC SAIJ32X35-20-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. Equipped with a SUS420J2 stainless steel rod and a magnet for position sensing, it provides a nominal 35 mm stroke that can be fine-tuned down by up to 20 mm, creating a precise 15-35 mm usable travel window for exact end-positioning.
Delivering 402 N of push force at 0.5 MPa, this compact 32 mm bore unit uses PT tapered port threading (G1/8) and variable air cushions at both ends. The rear adjuster acts purely as a mechanical stop to set the retract distance and does not lock the load without live air pressure, meaning external load-holding devices are required if power is lost.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX35-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX35-20S |
|---|---|
| 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 SAIJ32AX35-20S
| 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 SAIJ32AX35-20S Is Used
Machine Setup Tuning
Dial in the exact retract distance from 15 to 35 mm during initial machine commissioning to perfectly time pick-and-place movements without machining external stopper blocks.
Product Size Changeover
Quickly adapt the cylinder's effective stroke on packaging lines when handling different product sizes, using the rear screw to shift the end-stop position in seconds.
Short-Stroke Clamping
Securely clamp small components in automated jigs, using the SUS420J2 stainless steel rod to resist minor environmental contamination while adjusting the clamping depth.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX35-20S the Right Cylinder?
Choose this 32 mm bore cylinder when your application requires exact end-position tuning during commissioning without swapping out physical components. The integrated -S magnet enables direct mounting of AirTAC CMSE reed or DMSE electronic solid-state sensors along the dual-side barrel grooves for non-contact positioning. If your machine changeover requires variable end-stops rather than a fixed 35 mm SAI cylinder, this adjustable unit prevents the need for external stopper blocks.
For higher force requirements, stepping up to the 40 mm bore yields 628 N of push force at 0.5 MPa. Since the nominal stroke is 35 mm, side-loading risks are minimal, but always ensure the M10x1.25 rod thread is aligned with the load to prevent binding. For applications that must hold a load without continuous air supply, consider the SAIL or BSAI locking cylinder series instead of relying on the SAIJ adjuster.
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 SAIJ32AX35-20S FAQ
The rear adjuster screw lets you mechanically shorten the effective travel from the nominal 35 mm down to a minimum of 15 mm, providing a 15-35 mm usable window. It functions as a hard stop for the retract stroke and does not lock the load if air pressure is removed.
At 0.5 MPa operating pressure, it provides 402 N of push force and 345 N of pull force. It can reach up to 724 N of push force at 0.9 MPa, with a maximum operating pressure of 1.0 MPa.
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