Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-30
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX425-30 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 SAIJ80BX425-30
The AirTAC SAIJ80X425-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 395 to 425 mm. The extruded aluminum barrel features sensor grooves on both sides for flexible switch mounting.
This configuration utilizes a SUS304 stainless steel rod and PT tapered port threads. The rear adjustment screw allows fine end-position tuning during commissioning without adding external stops. Remember that this adjuster functions purely as a travel stop and does not hold the load without live air pressure; for true load-holding, consider the SAIL or BSAI series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-30 |
|---|---|
| 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 SAIJ80BX425-30
| 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 SAIJ80BX425-30 Is Used
Machine Changeover
Dial in the exact 395-425 mm end position during product size changes without physically swapping the cylinder or bolting on external mechanical stops.
Variable End Stops
Provides a highly adjustable travel limit for diverter arms on a conveyor line, allowing fine-tuning of the retracted position during initial commissioning.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX425-30 the Right Cylinder?
The adjustable stroke is perfect for product changeovers on a line, letting you dial in the exact 395-425 mm end-stop on the fly instead of swapping a fixed-stroke SAI cylinder. The mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Because the 425 mm stroke creates a long unsupported rod extension, an external guide is recommended to prevent excessive side-loading and premature wear. This model uses a PT port and lacks a magnet; if position sensing is required, a version with the -S option for CMSE or DMSE sensors would be needed.
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 SAIJ80BX425-30 FAQ
The rear adjuster screw lets you shorten the nominal 425 mm stroke by up to 30 mm, creating a 395-425 mm travel window. It acts as a mechanical stop, so you still need live air to hold the load.
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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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