Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-20S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 450mm 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
- Stroke450 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-20S
The AirTAC SAIJ32X450-20-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It provides a 20mm adjustment range, allowing you to fine-tune the effective travel window from 430 to 450mm during commissioning without swapping hardware. In the 32mm bore class, it delivers 402N of push force and 345N of pull force at a 0.5MPa operating pressure.
This unit features a SUS420J2 stainless steel rod for improved corrosion resistance and includes a magnet (-S) for use with AirTAC CMSE reed and DMSE electronic sensors. The extruded aluminum barrel incorporates sensor grooves on both sides for flexible switch mounting. It uses a G1/8 port and M10x1.25 rod thread, offering a robust 30-800mm/s speed range for precision actuation.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 450 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 SAIJ32AX450-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×450 | 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 SAIJ32AX450-20S Is Used
Machine Changeover
Dial in the 430-450mm stroke window during product size transitions to set new end positions rapidly without mechanical modifications.
Precision End-Stop Tuning
Use the 20mm rear adjuster to fine-tune the exact retraction point during commissioning, absorbing mechanical tolerances in the fixture.
Variable Length Indexing
Act as a movable stop on a conveyor line where package lengths vary, adjusting the stop distance by up to 20mm on the fly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-20S the Right Cylinder?
Choose this 32mm bore model when your application requires 402N of push force at 0.5MPa. If you need less force, stepping down is not an option below 32mm in this series, but stepping up to a 40mm bore yields 628N of push force. The adjustable stroke is selected over a fixed SAI cylinder when you need a variable end-stop to accommodate product changeovers or to dial in exact positioning without adding external stops. At 450mm of travel, the M10 rod thread is relatively slender, so an external guide is recommended to prevent side-load binding.
For load-holding without live air pressure, note that the rear adjuster is strictly a travel stop, not a lock. You would need to look at the SAIL or BSAI series for true pneumatic locking. This SAIJ32X450-20-S is dimensionally interchangeable per ISO 15552 and is configured with PT tapered port threads, a Basic/FA/LB/TC/FTC/TCM1/TCM2 mounting set, and a magnet for CMSE/DMSE sensors.
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 SAIJ32AX450-20S FAQ
At 0.5MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At the maximum 1.0MPa pressure, it can deliver up to 82kgf.
The rear adjuster acts as a stopper that lets you shorten the nominal 450mm stroke by up to 20mm, creating a usable travel window of 430-450mm. It only sets the travel end and does not lock or hold the load without live air pressure.
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