Airtac Adjustable Cylinder SAIJ32 SAIJ32BX475-20
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32BX475-20 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 475mm 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
- Stroke475 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX475-20
The AirTAC SAIJ32X475-20 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 455-475 mm usable travel window, allowing you to dial back the nominal 475 mm stroke by up to 20 mm during commissioning. Delivering 402 N of push force at 0.5 MPa, it suits light-duty positioning tasks.
This model uses a SUS304 stainless steel rod for corrosion resistance and features PT tapered ports. The extruded aluminum barrel includes sensor grooves on both sides for CMSE reed or DMSE electronic switches. Remember, the rear adjuster acts as a travel stop, not a load-holding lock.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX475-20 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX475-20 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 475 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 SAIJ32BX475-20
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×475 | 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 SAIJ32BX475-20 Is Used
Machine Changeover
Fine-tune the 455-475 mm retract position during product size changes without swapping the cylinder or bolting on external stops.
End-Position Tuning
Dial in the exact retract stop during commissioning to synchronize tooling, using the rear adjuster to trim up to 20 mm of travel.
Light-Duty Positioning
Apply 402 N of push force at 0.5 MPa to move light payloads, guided externally to protect the 12 mm rod from side loads.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX475-20 the Right Cylinder?
Choose this 32 mm bore when 402 N push force at 0.5 MPa is sufficient; step up to a 40 mm bore if you need 628 N. An adjustable stroke is ideal for machine changeovers, letting you fine-tune the retract end-position without swapping cylinders or adding external stops. For a fixed end-position, use a standard SAI cylinder.
With a 475 mm stroke, the 12 mm rod and M10x1.25 thread require an external guide to prevent side-load damage. The SAIJ mounting set includes Basic, FA, LB, TC, FTC, TCM1, and TCM2. If you need to hold a load without live air, use a SAIL or BSAI 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 SAIJ32BX475-20 FAQ
At 0.5 MPa, it delivers 402 N of push force and 345 N of pull force. The 475 mm nominal stroke can be adjusted backward by up to 20 mm, giving a 455-475 mm usable travel window.
No. The rear adjuster only sets the travel end-position and decelerates the load; it does not function as a lock. For load-holding without live air, use an AirTAC SAIL or BSAI cylinder.
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