Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-100
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX425-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 425mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke425 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 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 SAIJ80 Adjustable Cylinder SAIJ80BX425-100
It features a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered ports. The integrated adjustable stopper allows you to dial back the nominal 425mm travel, creating a precise 325-425mm usable stroke window without swapping out the entire unit.
Because the standard 425mm stroke is relatively long, the 25mm piston rod and M20x1.5 rod thread provide necessary rigidity, though an external guide is still recommended to manage side loads. The rear screw acts purely as a travel stop to fine-tune the end position during machine commissioning; it is not a locking device and cannot hold a load without continuous live air pressure. For load-holding requirements, consider an external rod lock or the AirTAC SAIL series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 425 mm |
| Acting type | Double acting |
| Port size | G3/8 |
| Rod thread | M20×1.5 |
| 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, 36 mm |
| Max stroke | Up to 1500 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 (Ø80mm)
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 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 SAIJ80 Adjustable Cylinder SAIJ80BX425-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | 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 SAIJ80 Adjustable Cylinder SAIJ80BX425-100 Is Used
Variable End-Stop Positioning
Ideal for packaging lines that need to adjust the extend position for different carton sizes, utilizing the 100mm rear adjuster to shift the 425mm stroke back to 325mm instantly.
Machine Changeover Calibration
Speeds up product changeovers by letting technicians fine-tune the end-of-stroke position at the machine rather than physically swapping out a fixed-length cylinder.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-100 the Right Cylinder?
The 100mm adjustment range is ideal for machinery that frequently processes varying product sizes, allowing operators to change the end-stop position on the fly rather than machining custom spacers or buying a fixed-stroke SAI cylinder.
When integrating this ISO 15552 dimensionally interchangeable cylinder, verify your mounting choice from the available SAIJ subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2 (note that FB, CA, CB, and CR mounts are omitted). Ensure your pneumatic setup supplies air to the PT threaded ports and relies on external guides to support the load over the extended 425mm travel.
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 SAIJ80 Adjustable Cylinder SAIJ80BX425-100 FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster screw allows you to shorten the effective travel from its nominal 425mm down to as little as 325mm, creating a 325-425mm usable window. It functions as a physical stop to tune the end position during setup and does not lock the load without air pressure.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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