Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-20S
The AirTAC Adjustable Cylinder SAIJ32 SAIJ32BX425-20S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ32 mm
- Stroke425 mm
- Port sizeG1/8
- Acting typeDouble acting
- Rod threadM10×1.25
- CushionAdjustable, 27 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-20S
The AirTAC SAIJ32X425-20-S is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 405-425 mm usable travel window, allowing you to dial back the 425 mm nominal stroke by up to 20 mm during machine commissioning.
This specific configuration includes a SUS304 stainless steel piston rod (option B) and a built-in magnet for position sensing. It accepts AirTAC CMSE reed and DMSE electronic sensors in the dual-side barrel grooves. The PT tapered port is G1/8, and the unit uses the standard SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-20S Technical Specifications
| Model | Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-20S |
|---|---|
| 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 | 346 N | 346 N |
| 0.7 MPa | 484 N | — |
| Max (@1.0 MPa) | 70 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-20S
| 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 SAIJ32BX425-20S Is Used
Machine Changeover
Dial in the exact 405-425 mm end-position during product size transitions without swapping out the entire cylinder or repositioning hard stops.
Transfer Diverter
Fine-tune the retract stroke on a packaging line diverter to accommodate varying package lengths on the fly.
End-Position Tuning
Trim the stroke by up to 20 mm during commissioning to perfect the timing and physical layout of a new assembly cell.
Is the Airtac Adjustable Cylinder SAIJ32 SAIJ32BX425-20S the Right Cylinder?
An adjustable stroke is selected over a fixed SAI cylinder when you need a variable end-stop for product changeovers or fine end-position tuning without adding external stops. Because the nominal stroke is 425 mm, an external guide is recommended to prevent side-loading damage to the M10x1.25 piston rod. The rear adjuster acts only as a travel stop and does not hold the load without live air—use SAIL or BSAI cylinders for true load-holding. This unit is dimensionally interchangeable per ISO 15552 mounting interfaces.
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 SAIJ32BX425-20S FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 20 mm, creating a 405-425 mm travel window. It acts as a physical stop for end-position tuning and does not lock the load without continuous air pressure.
At 0.7 MPa, the push force increases to 563 N.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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