Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 80mm 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
- Stroke80 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75
The AirTAC SAIJ80X80-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 80 mm stroke that can be dialed back by up to 75 mm, creating a highly flexible 5-80 mm usable travel window for precise end-position tuning during commissioning. Delivering 2513 N of push force at 0.5 MPa, it is built with a SUS420J2 stainless steel rod for enhanced durability against moisture.
This model uses a PT tapered G3/8 port and includes variable air cushions at both ends to decelerate the moving load smoothly. The rear adjuster acts strictly as a mechanical stop to set the travel end and does not hold the load without live air pressure. For load-holding applications without continuous air, consider the related SAIL or BSAI series instead.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 80 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 SAIJ80AX80-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×80 | 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 SAIJ80AX80-75 Is Used
Machine Changeover
Dial in the 5-80 mm travel window during product size changeovers on a packaging line without physically swapping the cylinder or adding external stops.
End-Position Tuning
Fine-tune the retract end-position during commissioning to perfectly align a 2513 N press or clamping operation using the rear adjusting screw.
Variable Stops
Adjust the effective stroke on the fly for sorting or diverting items of varying dimensions on a conveyor system.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX80-75 the Right Cylinder?
Choose this 80 mm bore cylinder when an application requires a robust 2513 N force at 0.5 MPa alongside highly variable end-stops, avoiding the need to swap cylinders for different product sizes on a line. If your setup only needs a fixed 80 mm stroke without the adjustment screw, the standard AirTAC SAI series is a simpler choice. To step down in force, a 63 mm bore provides 1559 N, while stepping up to a 100 mm bore yields 3927 N.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 80 mm stroke, 75 mm adjustment range, PT G3/8 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 25 mm rod and M20x1.5 thread handle substantial side loads, ensure an external guide is used if the stroke is significantly extended beyond standard limits.
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 SAIJ80AX80-75 FAQ
At 0.5 MPa operating pressure, the 80 mm bore generates 2513 N of push force and 2268 N of pull force. At its maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjuster acts as a mechanical stop that lets you shorten the nominal 80 mm stroke by up to 75 mm, creating a 5-80 mm usable travel window. It only sets the end-position and does not lock or hold the load without live air pressure.
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