Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-20S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-20S 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 SAIJ80X260-20S
The AirTAC SAIJ80X260-20-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a 240-260 mm usable travel window, letting you dial back the 260 mm nominal stroke by up to 20 mm during commissioning. Equipped with a -S magnet, it supports CMSE reed and DMSE electronic sensors for precise position detection.
In the 80 mm bore class, this model generates 2513 N of push force and 2268 N of pull force at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides, and the carbon steel rod uses an M20x1.5 thread. The rear adjuster acts purely as a mechanical stop to set the retract end position; it does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-20S |
|---|---|
| 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 SAIJ80X260-20S
| 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 SAIJ80X260-20S Is Used
Machine Changeover
Dial in the exact 240 to 260 mm retract position when switching between product sizes without bolting on external stops.
End-Position Tuning
Fine-tune the final end-stop during commissioning to absorb mechanical tolerances in a new fixture build.
Variable End Stops
Set precise retract distances for multi-stage assembly lines where the working stroke shifts based on the specific part run.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-20S the Right Cylinder?
Choose this 80 mm bore cylinder when an application requires 2513 N push force at 0.5 MPa, stepping up from a 63 mm bore that provides 1559 N. The adjustable stroke is ideal for machine changeovers where the exact end-of-stroke position varies slightly, eliminating the need to swap cylinders or add external stopper blocks. If you need to drop force, a 63 mm bore offers 1402 N pull at 0.5 MPa.
Because the 260 mm stroke creates a long unsupported rod extension, an external guide is recommended to handle side loads and prevent rod binding. For load-holding without continuous air pressure, this cylinder is not a lock; you would need an external rod lock or a pilot-operated check valve. To replace this unit, match the 80 mm bore, 260 mm stroke, 20 mm adjuster, PT port threads, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2).
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 SAIJ80X260-20S FAQ
At 0.5 MPa operating pressure, this 80 mm bore cylinder provides 2513 N of push force and 2268 N of pull force. It can reach up to 4523 N push force at 0.9 MPa.
The rear mechanical stopper lets you shorten the 260 mm nominal stroke by up to 20 mm, creating a 240 to 260 mm adjustable travel window. It acts as a travel stop and does not hold the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models usually ship in 3-4 days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-20S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.