Airtac SAIJ80 Adjustable Cylinder SAIJ80X140-100
The AirTAC Airtac SAIJ80 Adjustable Cylinder SAIJ80X140-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 140mm 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
- Stroke140 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80X140-100
The AirTAC SAIJ80X140-100 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster. It provides a usable travel window of 40-140 mm, allowing you to dial back the 140 mm nominal stroke by up to 100 mm. This bore size delivers a push force of 2513 N and a pull force of 2268 N at 0.5 MPa, making it suitable for medium to heavy duty positioning tasks.
The external adjusting screw acts strictly as a mechanical stop to fine-tune the retract end position during commissioning without swapping the cylinder. It is not a locking device and cannot hold a load without live air pressure. The extruded aluminum barrel includes sensor grooves on both sides, and the carbon steel piston rod features an M20x1.5 thread for robust mounting integration.
Airtac SAIJ80 Adjustable Cylinder SAIJ80X140-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80X140-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 140 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 SAIJ80X140-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×140 | 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 SAIJ80X140-100 Is Used
Machine Setup Changeover
Dial in the exact retract position during product size changeovers without adding external mechanical stops to the machine frame.
Variable End-Stop Positioning
Fine-tune the travel end within the 40-140 mm window to accommodate multiple part lengths on a single assembly fixture.
Adjustable Transfer Stroke
Modify the effective stroke on a pneumatic pusher to handle varying package dimensions on a packaging line.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80X140-100 the Right Cylinder?
Choose this 80 mm bore adjustable-stroke cylinder when your application requires variable end-stop positioning or frequent product changeovers. If your process needs less force, stepping down to a 63 mm bore yields a 1559 N push force at 0.5 MPa, whereas stepping up to a 100 mm bore provides 3927 N. The SAIJ series supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR brackets.
For load-holding without continuous air pressure, this cylinder is insufficient since the rear adjuster and air cushions only manage deceleration. You would need to specify an SAIL air-released lock or a BSAI clamp-lock cylinder instead. To replace an ISO 15552 cylinder with this SKU, match the 80 mm bore, 140 mm stroke, 100 mm adjustment, PT tapered port threads, and standard carbon steel rod material without a magnet.
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 SAIJ80X140-100 FAQ
At 0.5 MPa operating pressure, the 80 mm bore generates a push force of 2513 N and a pull force of 2268 N. At the maximum 1.0 MPa pressure, it delivers a push force of 5026 N.
The rear adjuster screw acts as a mechanical stop that lets you shorten the 140 mm nominal stroke by up to 100 mm, providing a usable travel window between 40 and 140 mm for precise end-position tuning.
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