Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-40
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-40 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 SAIJ80BX475-40
The AirTAC SAIJ80X475-40 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a 435 to 475 mm usable travel window, allowing you to dial in the exact retract position during commissioning without adding external stops. It delivers a robust 2513 N pull force at 0.5 MPa, making it well-suited for heavy manipulation tasks.
This unit is built with a SUS304 stainless steel rod for superior corrosion resistance and ships with PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting. Because the 475 mm stroke is relatively long, the 25 mm rod diameter should still be paired with an external guide to prevent excessive side-loading on the piston.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-40 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-40 |
|---|---|
| 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 SAIJ80BX475-40
| 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 SAIJ80BX475-40 Is Used
Changeover Adjustment
Dial in the 435-475 mm retract position during machine setup to accommodate different product sizes without swapping cylinders.
Variable End-Stop Diverter
Provides a fine-tuned physical stop for heavy items moving on a conveyor, using the 2513 N pull force to reliably retract the diverter arm.
Heavy Fixture Positioning
Positions heavy manufacturing fixtures with exact end-position control, leveraging the SUS304 rod for durability in industrial environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX475-40 the Right Cylinder?
Choose this 80 mm bore when an application requires substantial thrust, such as the 2513 N pull force at 0.5 MPa, but does not need the full 3927 N push of a 100 mm bore. The 40 mm rear adjustment screw is ideal for product changeovers, letting operators fine-tune the retract end-position on the fly rather than physically swapping a fixed-stroke SAI cylinder.
Remember that the rear adjuster acts only as a travel stop and the variable air cushions manage end-of-stroke deceleration; neither will hold a load without live air pressure. For true load-holding on this 475 mm stroke, select a SAIL pneumatic lock or BSAI clamp-lock cylinder. This SAIJ model is dimensionally interchangeable per ISO 15552 and supports Basic, FA, LB, TC, FTC, TCM1, and TCM2 mounts.
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 SAIJ80BX475-40 FAQ
It features a rear adjuster screw that lets you shorten the nominal 475 mm stroke by up to 40 mm, creating a 435-475 mm travel window. This allows precise end-position tuning at commissioning without adding external stops.
At 0.5 MPa operating pressure, it provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
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1-Year Warranty
Covers non-human-caused product damage.
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Standard models usually ship in 3-4 days.
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