Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 270mm 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
- Stroke270 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10
The AirTAC SAIJ80X270-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 260-270mm usable travel window. Delivering 2513N of push force at 0.5 MPa, it is built with a SUS420J2 stainless steel rod for superior corrosion resistance and PT tapered port threads.
The 10mm rear stopper screw allows precise end-position tuning during commissioning without adding external stops. Since this 270mm stroke exceeds 300mm when fully extended, an external guide is recommended to manage side loads on the 25mm rod. The adjuster acts strictly as a travel stop and does not hold the load without live air.
Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 270 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 SAIJ80AX270-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×270 | 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 SAIJ80AX270-10 Is Used
Machine Changeover
Fine-tune the 260-270mm retract position during product size changes without physically swapping out the entire cylinder.
End-Stop Calibration
Dial in the exact 10mm adjustment at commissioning to perfect the tooling stroke without bolting on external mechanical stops.
Assembly Line Positioning
Leverage the 2513N thrust at 0.5 MPa to push heavy components into place while maintaining a precise travel end.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80AX270-10 the Right Cylinder?
Choose this 80mm bore when the 50mm bore (982N push at 0.5 MPa) is insufficient but the 100mm bore (3927N at 0.5 MPa) is excessive. The adjustable 260-270mm window is ideal for product changeovers, letting you fine-tune the retract end without swapping the cylinder. For load-holding without continuous air pressure, use an SAIL or BSAI cylinder instead, as the SAIJ adjuster is only a stop.
To match this ISO 15552 cylinder, specify an 80mm bore, 270mm stroke, 10mm adjustment, PT port threads, SUS420J2 rod material, and no magnet. It supports a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2 (omitting FB, CA, CB, and CR).
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 SAIJ80AX270-10 FAQ
At 0.5 MPa operating pressure, this 80mm bore cylinder provides 2513N of push force and 2268N of pull force. At the maximum 1.0 MPa pressure, it delivers up to 513 kgf.
The rear adjuster screw acts as a mechanical stop that lets you shorten the effective travel from the nominal 270mm down to 260mm. It is a travel stop only and does not lock or hold the load without live air pressure.
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