Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-10S
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-10S is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 280mm 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
- Stroke280 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-10S
The AirTAC SAIJ80X280-10-S is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 270 to 280 mm. Delivering a robust 4523N of push force at 0.9 MPa, it handles heavy-duty positioning with ease. The integrated -S magnet enables precise end-of-stroke detection using AirTAC CMSE reed or DMSE electronic solid-state sensors fitted into the dual-side barrel grooves.
This adjustable model allows you to fine-tune the retract end position at commissioning without swapping out the cylinder or adding external stops. It features a durable carbon steel rod with an M20x1.5 thread, and utilizes a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a travel stop for deceleration and does not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-10S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-10S |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 280 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 SAIJ80X280-10S
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×280 | 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 SAIJ80X280-10S Is Used
Machine Setup Calibration
Dial in the exact 270 to 280mm retract position during initial commissioning without machining new mounting plates or swapping cylinders.
Product Size Changeover
Accommodate varying package dimensions on a packaging line by tweaking the 10mm external stopper rather than repositioning fixtures.
End-Stop Tuning
Fine-tune the final retract position to compensate for mechanical wear or slight misalignment over the machine's lifespan.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X280-10S the Right Cylinder?
Choose this 80mm bore when a 50mm bore's 1767N push at 0.9 MPa is insufficient, but a 100mm bore's 7068N would be excessive. The 10mm adjustment range is ideal for dialing in exact end-stops during machine setup or product changeover, offering flexibility that a fixed-stroke SAI cylinder cannot match. For load-holding requirements without continuous air pressure, this cylinder will not suffice; instead, consider the SAIL or BSAI locking series, or an external rod lock.
To replace this ISO 15552 cylinder, match the 80mm bore, 280mm stroke, 10mm adjustment, PT G3/8 port, and -S magnet. Because the 280mm stroke is relatively long, the 25mm carbon steel rod and M20x1.5 thread provide strong side-load resistance, though an external guide rail is still recommended to prevent rod binding over extended travel.
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 SAIJ80X280-10S FAQ
It features a rear adjusting screw that acts as a mechanical stop, allowing you to shorten the effective travel from 280mm down to 270mm. This creates a 10mm adjustable window for fine-tuning the end position at commissioning without replacing the cylinder.
At an operating pressure of 0.9 MPa, it provides a push force of 4523N and a pull force of 4059N. The maximum push force is 513 kgf at 1.0 MPa.
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