Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-40S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-40S 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 SAIJ32AX450-40S
The AirTAC SAIJ32X450-40-S is a double-acting, single-rod ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 410-450 mm usable travel window, letting you trim the 450 mm nominal stroke by up to 40 mm during commissioning without adding external stops. In the 32 mm bore class, it delivers 402 N of push force and 345 N of pull force at 0.5 MPa.
This variant uses a SUS420J2 stainless steel rod for improved corrosion resistance and includes a magnet for CMSE reed and DMSE solid-state sensors. The extruded aluminum barrel integrates sensor grooves on both sides. Remember the rear adjuster is a travel stop that decelerates the end position; it does not hold the load without live air pressure.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-40S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-40S |
|---|---|
| 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 SAIJ32AX450-40S
| 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 SAIJ32AX450-40S Is Used
Machine Setup Changeover
Dial in the exact 410-450 mm end position during product line changeovers without physically swapping cylinders or repositioning external stopper blocks.
Variable End Stops
Perfect for automated assembly stations where the retraction point needs frequent fine-tuning to accommodate different part lengths or sensing distances.
Material Sorting Gates
Provides adjustable travel for diverting arms on conveyors, allowing operators to tweak the retract distance for varying package sizes on the fly.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX450-40S the Right Cylinder?
Choose this 32 mm bore if your application requires less force than the 40 mm bore (which offers 628 N push at 0.5 MPa) but needs a long 450 mm stroke with fine end-position tuning. An adjustable stroke is ideal for machine setups requiring variable end stops or product-size changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder. To replace this ISO 15552 cylinder, match the 32 mm bore, 450 mm stroke, 40 mm adjustment, PT tapered port, and -S magnet.
With a 450 mm stroke, the 12 mm diameter piston rod has a long unsupported span. You should use an external guide to prevent excessive side-loading and premature wear. For applications that must hold a load without continuous air pressure, use a SAIL pneumatic lock or BSAI clamp-lock cylinder instead of relying on the 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 SAIJ32AX450-40S FAQ
At 0.5 MPa operating pressure, this 32 mm bore cylinder generates 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.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 450 mm down to as little as 410 mm. It sets the travel end and decelerates the motion, but it does not lock or hold the load without live air pressure.
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