Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX475-20S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 475mm 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
- Stroke475 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 SAIJ80BX475-20S
The AirTAC SAIJ80X475-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster.
This variant includes a SUS304 stainless steel rod (code B) for superior corrosion resistance and is equipped with a magnet (-S) for CMSE reed and DMSE electronic sensors. The extruded aluminum barrel maintains standard ISO 15552 mounting dimensions while omitting FB, CA, CB, and CR bracket options.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 475 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 SAIJ80BX475-20S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×475 | 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 SAIJ80BX475-20S Is Used
Machine Changeover
Dial in the 455-475mm retract position precisely when switching between product sizes on a packaging line.
End-Stop Calibration
Fine-tune the final end position during setup without fabricating custom external spacers or shims.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20S the Right Cylinder?
Choose this 80mm bore when an application requires higher thrust than a 63mm cylinder (1559N at 0.5 MPa) but does not need the full output of a 100mm unit (3927N). The adjustable stroke is perfect for product changeovers, allowing you to fine-tune the retract end position without adding external stops or swapping the cylinder.
Because the 475mm stroke is relatively long, ensure adequate external guiding to handle side loads. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding, consider an AirTAC SAIL or BSAI cylinder. This model features PT tapered ports and operates at speeds between 30-800mm/s.
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 SAIJ80BX475-20S FAQ
At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the nominal 475mm stroke by up to 20mm, creating a usable travel window of 455-475mm. This stopper only sets the end position and does not lock the load without continuous air pressure.
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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