Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX290-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 290mm 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
- Stroke290 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 SAIJ80BX290-75
Its SUS304 stainless steel rod and PT tapered port threads suit demanding industrial environments. By turning the rear screw, you achieve a usable travel window of 215-290mm, enabling precise end-position tuning without swapping hardware.
This extruded aluminum barrel features sensor grooves on both sides for CMSE reed or DMSE electronic switches. It uses a reduced mounting subset of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR. The rear stopper acts purely as a travel limit and deceleration point, meaning it will not hold a load without continuous live air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 290 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 SAIJ80BX290-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×290 | 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 SAIJ80BX290-75 Is Used
Variable End-Stop Positioning
Dial in the exact retraction point between 215 and 290mm during commissioning to accommodate multiple product sizes on a single conveyor line.
Machine Setup Changeover
Fine-tune the rear stopper screw during format changes instead of physically replacing the entire cylinder or adding external mechanical stops.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-75 the Right Cylinder?
Select this 80mm bore when an application requires substantial thrust but variable end-stops for product changeovers. Conversely, moving up to a 100mm bore provides 3927N. The 75mm adjustment range allows massive flexibility during machine setup compared to a fixed-stroke SAI cylinder.
Because the 290mm stroke creates an extended lever arm, the 25mm rod diameter requires external guiding to prevent excessive side-loading. To replace an ISO 15552 cylinder, match the 80mm bore, 290mm stroke, PT port, and mounting style. Note that the SAIJ lacks a lock; for load-holding without live air, consider an AirTAC SAIL or BSAI model.
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 SAIJ80BX290-75 FAQ
At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw allows you to shorten the nominal 290mm stroke by up to 75mm, creating a usable travel window of 215-290mm. This stopper sets the travel end but 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.
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