Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-30
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-30 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 SAIJ80X145-30
The AirTAC SAIJ80X145-30 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, delivering a robust 2513N push force at 0.5 MPa. By turning the external screw at the rear, you can trim the effective travel back by up to 30 mm, creating a precise 115-145 mm usable stroke window. This built-in adjustability allows you to dial in the exact retract end-position during commissioning without adding bulky external stops or swapping the cylinder.
Featuring a 25 mm carbon steel piston rod and an M20x1.5 thread, this bore size handles significant side loads, though long unsupported strokes still require an external guide. The extruded aluminum barrel includes sensor grooves on both sides for straightforward switch mounting, and the mounting options cover Basic, FA, LB, TC, FTC, TCM1, and TCM2. The rear adjuster acts purely as a travel stop and works alongside the standard variable air cushions at both ends to decelerate the load.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-30 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-30 |
|---|---|
| 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 SAIJ80X145-30
| 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 SAIJ80X145-30 Is Used
Machine Setup Tuning
Dial in the exact 115 to 145 mm retract position during commissioning without fabricating external stopper blocks or changing the cylinder.
Product Changeover
Quickly adjust the travel end-stop by up to 30 mm to accommodate different package sizes or product lengths running on the same conveyor line.
End-Stop Calibration
Fine-tune the final resting position of the 25 mm rod during automated assembly tasks, relying on the rear stopper rather than reprogramming the motion controller.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X145-30 the Right Cylinder?
Choose this 80 mm bore when your application requires more thrust than a 63 mm cylinder (which provides 1559N push at 0.5 MPa) but does not need the full 3927N push force of a 100 mm unit. The 30 mm adjustment range is ideal for product-size changeovers on a line, letting operators set a new variable end-stop on the fly. For fixed-position tasks that never require travel tuning, a standard SAI cylinder is a simpler alternative.
When specifying this ISO 15552 interchangeable cylinder, confirm the 145 mm stroke, 30 mm adjustment, PT G3/8 port thread, and the required mounting accessory. Because the rear adjuster only sets the travel end and the air cushions control deceleration, neither will hold a load without live air pressure. If your machine needs true load-holding safety, consider the SAIL air-released lock or BSAI clamp-lock cylinder 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 SAIJ80X145-30 FAQ
The rear adjuster allows you to shorten the 145 mm nominal stroke by up to 30 mm, providing a usable travel window of 115 to 145 mm. It acts as a mechanical stop to set the exact end-position without needing to replace the cylinder.
At 0.5 MPa operating pressure, this 80 mm bore cylinder generates 2513N of push force and 2268N of pull force. It can deliver up to 4523N push force at its maximum 1.0 MPa operating pressure.
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