Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100
The AirTAC Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100 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 SAIJ32AX425-100
The AirTAC SAIJ32X425-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to dial back the nominal 425 mm travel by up to 100 mm, creating a usable window of 325-425 mm. It delivers 402 N of push force at 0.5 MPa and utilizes a PT tapered port thread paired with a SUS420J2 stainless steel rod for improved corrosion resistance. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch placement.
Because this adjuster functions purely as a mechanical stop to set the retraction end-position, it does not hold the load without live air pressure. For applications requiring true load-holding without continuous air supply, consider the SAIL or BSAI locking cylinder variants instead.
Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100 Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100 |
|---|---|
| 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 SAIJ32AX425-100
| 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 SAIJ32AX425-100 Is Used
Machine Changeover
Rapidly reconfigure the retraction end-position from 425 mm down to 325 mm when switching between product sizes on a packaging line, eliminating the need to physically swap cylinders.
Commissioning Calibration
Fine-tune the exact stopping point during initial setup to achieve precise positioning, dialing in the 100 mm adjustment window to perfect the tooling alignment without adding external stopper blocks.
Variable End-Stop Setup
Establish a custom travel limit for delicate pick-and-place operations, using the rear mechanical stop to consistently set the retraction depth within the 325-425 mm range.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32AX425-100 the Right Cylinder?
Choose this 32 mm bore when 402 N of thrust at 0.5 MPa is sufficient; stepping up to the 40 mm bore increases that output to 628 N if your payload demands more force. The adjustable stroke is ideal for machine changeovers, letting you fine-tune the exact end-stop during commissioning rather than swapping out a fixed-stroke SAI cylinder or fabricating external stops. When replacing an ISO 15552 cylinder, match the 32 mm bore, 425 mm stroke, 100 mm adjustment range, PT port thread, and mounting style. Available mounts include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
With a 425 mm stroke on a 12 mm rod, the extended travel length makes the piston rod susceptible to side-loading. Even with the built-in variable air cushions at both ends, an external guide should be used to support the load and prevent premature seal wear.
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 SAIJ32AX425-100 FAQ
At 0.5 MPa, this 32 mm bore cylinder provides 402 N of push force and 345 N of pull force. If operating at the maximum 1.0 MPa pressure, the push force increases to 801 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective stroke from 425 mm down to a minimum of 325 mm, giving a 100 mm usable travel window. It only sets the end-position and deceleration; it does not lock or hold the load without live air pressure.
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