Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50 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 SAIJ80AX475-50
The AirTAC SAIJ80X475-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits you to fine-tune the retract end-position. It provides a usable travel window of 425 to 475 mm, letting you dial in the exact stroke without adding external stops. Delivering 2513 N of push force at 0.5 MPa, it handles substantial loads while maintaining a standard 30-800 mm/s speed range.
This unit includes an SUS420J2 stainless steel rod for improved corrosion resistance and uses PT tapered port threads. The extruded aluminum barrel incorporates sensor grooves on both sides for straightforward switch mounting. Remember that the rear adjuster acts only as a travel stop to set deceleration; it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50 |
|---|---|
| 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 SAIJ80AX475-50
| 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 SAIJ80AX475-50 Is Used
Machine Changeover
Quickly adjust the 425-475 mm travel window during product size changes without disassembling the machine or swapping cylinders.
Variable End Stops
Set precise retract positions for diverter arms or pushers on a conveyor line, tuning the stroke exactly to the workpiece.
Assembly Calibration
Fine-tune the end-of-stroke position during machine commissioning to ensure perfect alignment of heavy 80 mm bore assemblies.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX475-50 the Right Cylinder?
Choose this 80 mm bore when you need higher thrust than a 63 mm bore (which provides 1559 N at 0.5 MPa) but want to avoid the bulk of a 100 mm option. The 50 mm adjustment range is ideal for product changeovers on a line, allowing you to reposition the end-stop quickly during commissioning rather than swapping out a fixed-stroke SAI cylinder. To match this ISO 15552 replacement, specify the 80 mm bore, 475 mm stroke, 50 mm adjustment, PT G3/8 port, and the SUS420J2 rod material. Because the 475 mm stroke is relatively long, an external guide is recommended to prevent excessive side-loading on the rod.
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 SAIJ80AX475-50 FAQ
The rear adjuster screw lets you shorten the effective stroke by up to 50 mm, creating a 425 to 475 mm usable travel window. It acts as a mechanical stop to tune the end position and does not lock the load without live air.
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
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