Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-10
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-10 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 145mm 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
- Stroke145 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-10
The AirTAC SAIJ80X145-10 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to fine-tune the end position at commissioning. With a nominal 145 mm stroke and a 10 mm adjustment screw, it provides a usable travel window of 135 to 145 mm without requiring external stops. This 80 mm bore generates 2513 N of push force at 0.5 MPa, making it well-suited for medium to heavy-duty positioning tasks.
It features a carbon steel piston rod with an M20x1.5 thread, sized to handle robust side loads, though any long unsupported travel still requires an external guide. The extruded aluminum barrel includes sensor grooves on both sides, and because no magnet is specified, position sensing requires an external solution rather than embedded CMSE or DMSE switches. The rear adjuster acts strictly as a travel stop for deceleration and positioning, not as a lock, meaning the cylinder will not hold a load safely without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-10 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-10 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 145 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 SAIJ80X145-10
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×145 | 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 SAIJ80X145-10 Is Used
Machine Changeover
Dial in the exact end-stop during product size transitions on a packaging line, shifting the travel window between 135 and 145 mm on the fly.
Assembly Positioning
Leverage the 2513 N push force at 0.5 MPa to seat components securely, using the rear screw to compensate for mechanical tolerance stack-up.
Conveyor Diverter
Set precise retract positions for diverter arms using the M20x1.5 rod thread, ensuring accurate routing without adding bulky external hard stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-10 the Right Cylinder?
Choose this 80 mm bore adjustable-stroke cylinder when your application requires exact end-position tuning during machine setup or product changeovers, avoiding the need to swap out a fixed-stroke SAI cylinder. If your thrust requirements are lower, stepping down to a 63 mm bore yields 1559 N of push force at 0.5 MPa, while moving up to a 100 mm bore provides 3927 N for heavier loads.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 145 mm stroke, 10 mm adjustment range, G3/8 PT port thread, and the required mounting accessory. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. If your process demands fail-safe load holding without continuous air pressure, consider the SAIL pneumatic lock series or an external rod lock instead of relying on this rear stopper.
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 SAIJ80X145-10 FAQ
The rear adjuster screw allows you to shorten the effective stroke by up to 10 mm, creating a 135 to 145 mm travel window. It functions as a mechanical stop for end-position tuning and does not lock the load without live air pressure.
At a 0.5 MPa operating pressure, the SAIJ80X145-10 provides 2513 N of push force and 2268 N of pull force. It can reach up to 4523 N of push force at its maximum 0.9 MPa pressure.
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