Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 750mm 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
- Stroke750 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-75
The AirTAC SAIJ80X750-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 675-750mm usable travel window. It delivers 2513N of pull force at 0.5 MPa and reaches a maximum of 513kgf at 1.0 MPa. The extruded aluminum barrel includes sensor grooves on both sides for flexible positioning detection.
This configuration uses a SUS420J2 stainless steel rod (option A) for improved corrosion resistance and features PT tapered port threads. The rear adjuster functions strictly as a travel stop to dial in the end position during commissioning; it does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 750 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 SAIJ80AX750-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×750 | 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 SAIJ80AX750-75 Is Used
Product Changeover Lines
Dial in the 675-750mm travel window during format size changes without physically replacing the actuator or adding external mechanical stops.
End-Stop Tuning
Fine-tune the exact retract position during machine commissioning using the rear screw, ensuring precise placement of high-thrust loads.
Extended Reach Automation
Utilize the 750mm stroke for long-traverse material handling tasks, relying on the 25mm rod to handle the extended unsupported length.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX750-75 the Right Cylinder?
Choose this 80mm bore over the 63mm option (1402N pull at 0.5 MPa) when your application requires higher thrust, or step down to the 63mm bore if 1402N is sufficient. The 75mm adjustment range is ideal for product changeovers on a line, allowing you to fine-tune the end position without swapping the cylinder or bolting on external stops. Because the nominal stroke is 750mm, an external guide is recommended to prevent excessive side-loading on the extended rod.
This cylinder is dimensionally interchangeable per ISO 15552. It uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR). For load-holding without live pressure, consider the SAIL or BSAI series instead of relying on the adjuster.
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 SAIJ80AX750-75 FAQ
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel by up to 75mm, creating a 675-750mm usable window. It is used for fine-tuning the end position at commissioning or during product changeovers without swapping the cylinder.
At 0.5 MPa it provides 2513N of pull force and 2268N of push force. At the maximum operating pressure of 1.0 MPa, it delivers up to 513kgf.
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