Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-30S
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-30S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø32mm bore and 425mm 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
- Stroke425 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-30S
The AirTAC SAIJ32X425-30-S is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers 402N of push force at 0.5MPa and features a 12mm SUS420J2 stainless steel rod with an M10x1.25 thread. By turning the rear adjustment screw, you can trim the effective travel back by up to 30mm, creating a usable 395-425mm stroke window. This allows precise end-position tuning at commissioning without swapping the cylinder or adding external stops. The extruded aluminum barrel includes sensor grooves on both sides, and the integrated magnet works directly with CMSE reed and DMSE electronic switches. It uses a PT tapered G1/8 port and reaches speeds of 30-800mm/s.
This model uses a reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), omitting FB, CA, CB, and CR brackets. The rear adjuster acts purely as a mechanical stop to set the travel end and deceleration point alongside the air cushions. It does not hold the load without live air pressure. For load-holding requirements without continuous air supply, consider the SAIL or BSAI series instead.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-30S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-30S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø32 mm |
| Stroke | 425 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 SAIJ32AX425-30S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 32 | Bore size in mm. |
| ×425 | 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 SAIJ32AX425-30S Is Used
Machine Changeover
Dial in the exact 395-425mm end-position during product size changes on a packaging line without bolting on external stops.
End-Position Tuning
Fine-tune the retract stroke during commissioning to perfectly align tooling, absorbing mechanical tolerances via the rear screw.
Variable End Stops
Adjust the travel limit on the fly for sorting or diverting applications where the physical stop point varies by batch.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-30S the Right Cylinder?
Choose this 32mm bore when your application requires 402N push or 345N pull force at 0.5MPa. If your setup needs higher thrust, stepping up to the 40mm bore provides 628N push force. The adjustable stroke is selected over a fixed SAI cylinder when you need variable end-stops for machine setup or product changeover. Because the 425mm stroke is relatively long for a 32mm bore, the 12mm rod and M10x1.25 thread can only handle limited side loads; an external guide rail is recommended to prevent rod binding.
To match this ISO 15552 interchangeable cylinder, specify the 32mm bore, 425mm stroke, 30mm adjustment range, PT G1/8 port, and the -S magnet for CMSE/DMSE sensors. The standard 27mm cushions at both ends help absorb kinetic energy, but remember that the rear adjuster is a travel stop, not a locking mechanism.
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 SAIJ32AX425-30S FAQ
At 0.5MPa operating pressure, this 32mm bore cylinder provides 402N of push force and 345N of pull force. At 0.7MPa, the push force increases to 563N.
The rear adjuster screw lets you shorten the 425mm nominal stroke by up to 30mm, giving a usable travel window of 395-425mm. The adjuster acts as a mechanical stop to set the end position and does not lock the load without live air.
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