Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20 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 a drop-in replacement for other ISO 15552 cylinders in automation lines.
- BoreØ80 mm
- Stroke475 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20
The AirTAC SAIJ80X475-20 is a double-acting, single-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. It delivers a robust 2513N push force at 0.5 MPa, utilizing a 25mm piston rod and G3/8 ports. The integrated adjustment screw allows you to fine-tune the effective travel down from the 475mm nominal stroke, providing a usable window of 455-475mm to perfectly dial in end positions during commissioning.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and ships without a magnet. Because the stroke extends to 475mm, the 25mm rod requires external guiding to prevent excessive side-loading. The rear stopper sets the retract deceleration point but does not lock the load; for true position holding without live air, consider an external rod lock or the AirTAC SAIL series.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20 |
|---|---|
| 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 | 2513 N | 2268 N |
| 0.7 MPa | 3519 N | — |
| Max (@1.0 MPa) | 513 kgf | |
Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20
| 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 SAIJ80BX475-20 Is Used
Variable End-Stop Setup
Dial in the exact retract position within the 455-475mm window during machine commissioning without physically changing the cylinder or adding external stopper blocks.
Product Size Changeovers
Quickly adjust the stroke by up to 20mm on a packaging line to accommodate different carton sizes, using the rear screw to fine-tune the stopping distance.
Long-Stroke Forming
Leverage the 2513N push force at 0.5 MPa for pressing or forming tasks, relying on the SUS304 rod for durability in demanding industrial environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20 the Right Cylinder?
Select this 80mm bore when an application demands higher thrust than a 63mm cylinder (which provides 1559N push at 0.5 MPa) but does not require the full 3927N output of a 100mm bore. The adjustable 455-475mm window is ideal for product changeovers on a line, letting operators shift the end-stop without swapping cylinders or adding external stops. For fixed-length applications without the need for trim adjustment, a standard SAI cylinder is sufficient.
To match this exact ISO 15552 footprint, specify an 80mm bore, 475mm stroke, PT tapered port thread, and the SUS304 (B) rod material. Note that SAIJ supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets. As the stroke is over 300mm, ensure an external guide supports the load to protect the rod from deflection.
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 SAIJ80BX475-20 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At 0.7 MPa, the push force increases to 3518N.
The rear adjuster screw acts as a mechanical stop that shortens the 475mm nominal stroke by up to 20mm, creating a usable travel window of 455-475mm. It only sets the travel end-point and does not hold 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 usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-20
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.