Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-30 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 SAIJ80X260-30
The AirTAC SAIJ80X260-30 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits you to trim the nominal 260 mm travel back by up to 30 mm. This creates a 230-260 mm usable end-position window, allowing you to fine-tune the retract distance at commissioning without bolting on external stops. It features a carbon steel piston rod and PT tapered port threads.
Belonging to the 80 mm bore class, it delivers a robust 4523 N of push force at 0.9 MPa and 2268 N of pull force at 0.5 MPa. The extruded aluminum barrel includes sensor grooves on both sides for easy switch mounting, while the variable air cushions at both ends absorb kinetic energy. The rear adjuster acts purely as a travel stop and does not lock the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-30 |
|---|---|
| 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 SAIJ80X260-30
| 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 SAIJ80X260-30 Is Used
Variable End-Position Tuning
Dial in the exact retract distance from 230 to 260 mm during machine commissioning to perfect product seating without physically swapping out the cylinder.
Product-Size Changeovers
Quickly adapt the stroke length on packaging lines when switching to different carton sizes, using the 30 mm adjustment range to accommodate new format requirements.
Assembly Press Positioning
Leverage the 4523 N push force at 0.9 MPa for pressing operations, using the rear stopper to fine-tune the final pressing depth safely and accurately.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X260-30 the Right Cylinder?
Selecting this 80 mm bore model makes sense when your application requires the 2513 N push force available at 0.5 MPa, bridging the gap below the 100 mm bore class. You would choose this adjustable-stroke version over a fixed SAI cylinder when a machine requires variable end-stops to handle product-size changeovers on the fly. To drop in a replacement, match the 260 mm stroke, 30 mm adjustment, PT port threads, and the reduced SAIJ mounting set (Basic, FA, LB, TC, FTC, TCM1, TCM2), which omits FB, CA, CB, and CR.
Because the 260 mm stroke is substantial, the 25 mm rod diameter and M20x1.5 rod thread provide stiffness, but an external guide is still recommended to manage side loads over the extended travel. Remember that the rear adjuster is a stop, not a brake; for true fail-safe load holding without live air, look to the 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 SAIJ80X260-30 FAQ
It features a rear adjusting screw that acts as a mechanical stopper, allowing you to shorten the 260 mm nominal stroke by up to 30 mm. This provides a usable travel window of 230 to 260 mm for fine-tuning the end position.
At an operating pressure of 0.9 MPa, the SAIJ80X260-30 generates 4523 N of push force and 4055 N of pull force. At 0.5 MPa, it provides 2513 N of push force.
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