Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-20S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX290-20S 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 SAIJ80BX290-20S
The AirTAC SAIJ80X290-20-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster, providing a usable travel window of 270 to 290 mm. An integrated magnet allows seamless positioning feedback with AirTAC CMSE reed or DMSE electronic sensors.
This variant features a SUS304 stainless steel rod for superior corrosion resistance and utilizes PT tapered port threads. The rear stopper screw enables precise end-position tuning during commissioning without adding external stops, though it acts purely as a travel limiter and does not hold the load without continuous air pressure.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-20S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-20S |
|---|---|
| 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 SAIJ80BX290-20S
| 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 SAIJ80BX290-20S Is Used
Product Size Changeovers
Quickly dial in the 270-290 mm retract distance during format changes on packaging lines without physically replacing the cylinder.
End-Position Calibration
Fine-tune the exact stopping point during machine commissioning to prevent mechanical crashes and optimize cycle timing.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX290-20S the Right Cylinder?
The adjustable 270-290 mm window is perfect for product-size changeovers on a line, allowing operators to dial in the exact retract distance rather than swapping out a fixed-stroke SAI cylinder. For true load-holding without live air pressure, consider the SAIL or BSAI series, as the SAIJ adjuster is strictly a stop.
Because the 290 mm stroke approaches the mid-to-high range, ensure external guides support the load to prevent excessive side-loading on the SUS304 rod. This model is dimensionally interchangeable per ISO 15552 and supports a reduced mounting set including Basic, FA, LB, TC, FTC, TCM1, and TCM2.
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 SAIJ80BX290-20S FAQ
At a maximum 1.0 MPa, it can deliver up to 513 kgf.
The rear adjuster acts as a mechanical stop, allowing you to shorten the effective stroke from the nominal 290 mm down to 270 mm. This creates a 270-290 mm travel window for fine-tuning the end position without altering the cylinder mount.
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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.
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Most inquiries answered within 7-8 hours.
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