Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-40S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX145-40S 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 interchangeable with other ISO 15552 cylinders at the mounting interface.
- BoreØ80 mm
- Stroke145 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 SAIJ80BX145-40S
The AirTAC SAIJ80X145-40-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. Because of the 40 mm adjustment code, the effective travel window can be fine-tuned anywhere between 105 and 145 mm without adding external stops.
This variant includes a magnet for position sensing and uses PT tapered ports. The extruded aluminum barrel incorporates sensor grooves on both sides, allowing you to mount CMSE reed or DMSE electronic switches precisely where needed. The rear screw acts purely as a travel stop for end-position tuning, so it will not hold the load without live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-40S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-40S |
|---|---|
| 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 | 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 SAIJ80BX145-40S
| 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 SAIJ80BX145-40S Is Used
Product Changeover
Dial in the exact end-stop between 105 and 145 mm during production line format changes, accommodating different package sizes without physically swapping cylinders.
End-Position Tuning
Fine-tune the retract position during machine commissioning to perfect the alignment of tooling, preventing crashes and ensuring precise mechanical contact.
Sensor-Driven Handling
Leverage the built-in magnet and dual sensor grooves to confirm mid-stroke or end-stroke positions using CMSE or DMSE switches in automated assembly lines.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-40S the Right Cylinder?
The adjustable 105-145 mm travel window is ideal for machine setups requiring frequent product changeovers, allowing operators to dial in the exact end position at commissioning rather than machining custom spacers or swapping to a fixed-stroke SAI cylinder.
For load-holding without continuous air pressure, this cylinder is not suitable since the adjuster is only a stop; you should explore an external rod lock or the AirTAC SAIL locking cylinder instead. To achieve a true ISO 15552 replacement match, verify the 80 mm bore, 145 mm stroke, 40 mm adjustment, G3/8 PT ports, and the -S magnet requirement. The 145 mm stroke is relatively short, so side-loading is less severe than on longer strokes, but external guides are still recommended for heavy lateral loads.
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 SAIJ80BX145-40S FAQ
At a maximum 1.0 MPa pressure, it can output up to 513 kgf.
The rear adjuster screw allows you to shorten the nominal 145 mm stroke by up to 40 mm, creating a usable travel window of 105 to 145 mm. It functions as a mechanical stop for end-position tuning and does not lock the load without live air pressure.
Authorized Export Seller
Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
Request a Quote for Airtac SAIJ80 Adjustable Cylinder SAIJ80BX145-40S
Send us the quantity and destination. We confirm price, stock and lead time — usually within 7-8 hours.