Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-40S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-40S 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 SAIJ80AX475-40S
The AirTAC SAIJ80X475-40-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position. It provides a usable travel window of 435-475 mm, letting you dial back the 475 mm nominal stroke by up to 40 mm during commissioning. Delivering 2513 N of push force at 0.5 MPa, it handles substantial loads while maintaining dimensionally interchangeable ISO 15552 mounting dimensions.
This configuration includes a SUS420J2 stainless steel rod for enhanced durability against minor corrosion and features an integrated magnet (-S) for position sensing. It is equipped with a PT tapered port (G3/8) and variable air cushions at both ends to decelerate the moving load. Note that the rear adjuster acts purely as a mechanical stop and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-40S |
|---|---|
| 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 SAIJ80AX475-40S
| 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 SAIJ80AX475-40S Is Used
Machine Changeover
Dial in the exact 435 to 475 mm end-stop during product size changes without swapping out the physical cylinder.
Assembly Pressing
Provides 2513 N of precise thrust at 0.5 MPa for pressing components, with a rear stopper for fine depth tuning.
Diversion Mechanism
Drives long-stroke sorting gates on a conveyor line, allowing quick end-position adjustments via the rear screw.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-40S the Right Cylinder?
Choose this 80 mm bore cylinder when your application requires 2513 N of thrust at 0.5 MPa (or up to 4523 N at 0.9 MPa) alongside a highly specific end-position setup. If your process demands less force, stepping down to a 63 mm bore yields 1559 N; if you need more power, a 100 mm bore provides 3927 N. The adjustable stroke is ideal for machine changeovers, allowing you to shift the end stop without physically swapping the cylinder or adding external stops.
Because the 475 mm stroke is relatively long, ensure you provide an external guide to support the rod and prevent excessive side-loading, as even the robust M20x1.5 rod thread cannot compensate for severe lateral forces on extended travels. This SAIJ model uses a reduced mounting subset (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. For load-holding without live air pressure, this cylinder is insufficient; consider an AirTAC SAIL or BSAI series instead.
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 SAIJ80AX475-40S FAQ
At 0.5 MPa, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At 0.9 MPa, the push force increases to 4523 N.
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke from 475 mm down to a minimum of 435 mm. It sets the travel end but does not lock or hold the load without continuous air pressure.
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