Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75S 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 SAIJ80X260-75S
The AirTAC SAIJ80X260-75-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 2513N push force at 0.5 MPa. Featuring a carbon steel rod and a PT tapered port thread, it provides an adjustable travel window from 185 to 260 mm. This allows you to fine-tune the retract end position at commissioning without swapping the cylinder or adding external stops.
The rear adjuster acts purely as a mechanical stop to set the travel end, while the variable air cushions decelerate the load; neither will hold the load without live air pressure. For position sensing, the integrated magnet works seamlessly with AirTAC CMSE reed and DMSE electronic sensors fitted into the dual-side barrel grooves.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75S |
|---|---|
| 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 SAIJ80X260-75S
| 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 SAIJ80X260-75S Is Used
Product Changeovers
Dial in the 185-260mm travel window during format changes on packaging lines, accommodating varying carton sizes without hardware swaps.
End-Position Tuning
Use the 75mm rear stopper screw to precisely set the retract end position during machine commissioning, avoiding the need for external mechanical stops.
Assembly Pressing
Leverage the 2513N thrust at 0.5 MPa for pressing operations, adjusting the stroke on the fly to handle different part heights safely.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-75S the Right Cylinder?
Choose this 80mm bore when a 63mm bore (providing 1559N push at 0.5 MPa) is insufficient for your load, but a 100mm bore (3927N) would be excessive. The 75mm adjustment range is ideal for machines requiring frequent product-size changeovers, offering a wider tuning band than a 20mm or 50mm adjuster would allow.
Because the 260mm stroke exceeds 300mm? No, but at 260mm with a 25mm rod, you should still ensure external guiding to prevent excessive side-loading on the rod. This SAIJ model uses the reduced mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2) and omits FB, CA, CB, and CR brackets. If your application requires true load-holding without continuous air pressure, consider the 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 SAIJ80X260-75S FAQ
The nominal stroke is 260mm, but the 75mm rear adjuster allows you to shorten the effective travel to anywhere between 185mm and 260mm.
At 0.5 MPa operating pressure, the 80mm bore provides 2513N of push force and 2268N of pull force. At 0.9 MPa, the push force increases to 4523N.
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