Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX180-50 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 SAIJ80BX180-50
The AirTAC SAIJ80X180-50 is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. By turning the rear stopper screw, you can dial back the nominal 180mm stroke by up to 50mm, creating a precise 130-180mm usable travel window. This allows fine end-position tuning at commissioning without swapping the cylinder or adding external stops.
Built with a SUS304 stainless steel rod (option B) and PT tapered port threads, this profile cylinder integrates variable air cushions at both ends. The rear adjuster functions strictly as a mechanical travel stop to set deceleration, not as a lock; it will not hold a load without live air pressure. For load-holding requirements without continuous pressure, consider the related SAIL or BSAI series. The extruded aluminum barrel includes sensor grooves on both sides, and mounting options span Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-50 |
|---|---|
| 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 SAIJ80BX180-50
| 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 SAIJ80BX180-50 Is Used
Machine Changeover
Dial in the 130-180mm travel window during product size transitions without swapping the physical cylinder or adding external stop blocks.
End-Position Tuning
Fine-tune the exact retract position at commissioning using the rear screw, compensating for mechanical tolerance variations in the fixture.
Variable End Stops
Set precise deceleration points for different workpieces, utilizing the 50mm adjustment range alongside the standard variable air cushions.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX180-50 the Right Cylinder?
The 130-180mm adjustable travel window is ideal for accommodating varying product sizes on a line. Because the 25mm rod and M20x1.5 thread handle significant side loads, this cylinder is well-suited for robust applications, though any stroke exceeding 300mm would still require an external guide. To match this ISO 15552 replacement, specify an 80mm bore, 180mm stroke, 50mm adjustment, PT ports, and no magnet. If pneumatic position sensing is needed later, note that adding a magnet (-S) enables CMSE reed and DMSE electronic sensors.
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 SAIJ80BX180-50 FAQ
The maximum operating pressure is 1.0 MPa.
The rear adjuster screw acts as a mechanical stop that can shorten the nominal 180mm stroke by up to 50mm, creating a 130-180mm usable travel window. It sets the end position but does not lock the load without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
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Standard models are processed and dispatched in 3-5 business days.
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Most inquiries answered within 7-8 hours.
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