Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX180-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 180mm stroke, G3/8 air ports and adjustable end cushioning. Its standardized mounting interface makes it interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke180 mm
- Port sizeG3/8
- Acting typeDouble acting
- Rod threadM20×1.5
- CushionAdjustable, 36 mm
- No minimum order. A single piece can be ordered.
- Ready in 3–5 business days. That is the time we take to process the order and hand it to the carrier. Transit time after that depends on the destination.
About the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-75
The AirTAC SAIJ80X180-75 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that permits on-the-fly travel modifications. It provides a usable stroke window of 105 to 180 mm, allowing you to dial back the nominal 180 mm travel by up to 75 mm without swapping out the barrel or installing external mechanical stops.
This model utilizes PT tapered port threads and a G3/8 air connection. The extruded aluminum barrel includes sensor grooves on both sides for mounting switches. However, because this specific SKU is supplied without a magnet, adding position sensing requires a configuration change. The rear adjuster functions strictly as a travel stop to set end positions and relies on the integrated air cushions for end-of-stroke deceleration; it does not lock or hold the load in place without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 180 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 | 2268 N | 2268 N |
| 0.7 MPa | 3175 N | — |
| Max (@1.0 MPa) | 463 kgf | |
Double-rod model: the rod passes through the rear cover, so both piston faces lose rod area and push is shown at the annular-area value. Actual usable force is lower than theoretical due to friction and back-pressure. Size with a safety margin.
Model Code: Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×180 | 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 SAIJ80BX180-75 Is Used
Product Changeover
Rapidly adjust the 105-180 mm travel window during packaging format changes to accommodate different carton lengths without changing the cylinder.
End-Stop Calibration
Fine-tune the exact retract position during machine commissioning to perfect a pressing operation, relying on the 25 mm rod and M20x1.5 thread for stability.
Variable Positioning
Set precise end-of-stroke limits for assembly stations, using the rear stop to define the exact 180 mm maximum travel before the air cushion takes over.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-75 the Right Cylinder?
The 75 mm adjustment range is particularly advantageous for machines processing varying product sizes, allowing operators to reposition the end stop during changeovers rather than replacing the entire actuator.
When replacing an ISO 15552 cylinder, match the 80 mm bore, 180 mm nominal stroke, 75 mm adjustment range, PT port threads, and the specific mounting interface. SAIJ supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting the FB, CA, CB, and CR foot and pivot options. Because the rear screw acts solely as a stop and the air cushions manage deceleration, neither component will hold a load safely without live air; for true fail-safe load holding, consider an AirTAC SAIL locking cylinder or an external rod lock.
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 SAIJ80BX180-75 FAQ
At 0.9 MPa, the push force increases to 4523 N. The operational speed range is 30 to 800 mm/s.
The rear adjuster screw allows you to shorten the effective stroke from its 180 mm nominal length by up to 75 mm, creating a usable travel window of 105 to 180 mm. This stopper sets the end position and works with the air cushions for deceleration, but it does not lock the load without live air pressure.
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Covers non-human-caused product damage.
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