Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 260mm 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
- Stroke260 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75
The AirTAC SAIJ80X260-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that trims the nominal 260 mm stroke back by up to 75 mm. This yields a usable travel window of 185 to 260 mm, allowing you to dial in the exact retract end-position during commissioning without swapping the barrel or adding external stops. An 80 mm bore delivers 3518 N of push force at 0.7 MPa, making it robust enough for heavy material handling.
This SKU features a SUS420J2 stainless steel rod (material code A) paired with a PT tapered port thread. The extruded aluminum barrel includes sensor grooves on both sides for future CMSE or DMSE switches, though this specific configuration omits the internal magnet. Remember that the rear adjuster acts purely as a mechanical stop for end-position tuning; it does not lock or hold the load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 260 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 SAIJ80AX260-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×260 | 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 SAIJ80AX260-75 Is Used
Machine Changeover
Dial in the retract distance up to 75 mm during product size transitions on a packaging line, eliminating the need to physically swap out the cylinder for different part lengths.
End-Stop Tuning
Fine-tune the exact end position at machine commissioning to perfect a pressing or clamping operation, using the rear screw to hit the precise 185 to 260 mm travel window.
Material Handling
Leverage the 80 mm bore's 3518 N push force at 0.7 MPa to push heavy pallets or transfer products between conveyors, adjusting the stroke to accommodate varying pallet depths.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX260-75 the Right Cylinder?
Choose this 80 mm bore when an application requires more thrust than a 63 mm cylinder (which provides 2182 N at 0.7 MPa) but does not warrant the size and air consumption of a 100 mm unit. The 75 mm adjustment range is ideal for product-size changeovers on a production line, letting operators redefine the retract distance on the fly instead of re-engineering the machine. If your process requires the cylinder to hold its position during a complete loss of air pressure, note that this adjuster is not a brake—you would need to step up to an AirTAC SAIL or BSAI locking cylinder instead.
When replacing an existing ISO 15552 cylinder, match the 80 mm bore, 260 mm nominal stroke, PT G3/8 port, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2). Because the 260 mm stroke approaches the threshold where side loads amplify, always guide the rod end to prevent premature seal wear, and rely on the 36 mm air cushions to decelerate the load at the extended end.
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 SAIJ80AX260-75 FAQ
At a standard operating pressure of 0.7 MPa, the 80 mm bore generates 3518 N of push force and 2268 N of pull force. If you increase the pressure to 0.9 MPa, the push force rises to 4523 N.
The rear adjuster screw allows you to shorten the 260 mm nominal stroke by up to 75 mm. This creates an adjustable travel window between 185 mm and 260 mm so you can set the exact retract end-position without changing the cylinder.
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