Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-100
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX280-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 280mm 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
- Stroke280 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 SAIJ80BX280-100
The AirTAC SAIJ80X280-100 is a double-acting ISO 15552 profile cylinder equipped with a rear stroke adjuster, allowing you to dial back the nominal 280 mm travel by up to 100 mm. This creates a highly flexible 180-280 mm usable window, letting you fine-tune end positions during commissioning without swapping out the physical actuator.
This specific configuration features a SUS304 stainless steel rod for superior corrosion resistance and features PT tapered port threads. The extruded aluminum barrel includes sensor grooves on both sides, though this unit is specified without a magnet. It relies on variable air cushions at both ends to decelerate the load smoothly, and the rear stopper functions strictly as a travel end-setter rather than a locking device.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 280 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 SAIJ80BX280-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×280 | 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 SAIJ80BX280-100 Is Used
Variable End-Stop Tuning
Dial in the exact 180-280 mm end position during machine commissioning to accommodate different product lengths without physically replacing the cylinder.
Production Line Changeover
Rapidly adjust the stroke up to 100 mm when switching the manufacturing line to a new product size, minimizing downtime and avoiding external stop hardware.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-100 the Right Cylinder?
Because the nominal stroke is 280 mm, ensure your mounting arrangement provides adequate external guidance to handle any potential side loads.
Choose this adjustable-stroke variant over a fixed SAI model when you need on-the-fly end-position tuning without adding external mechanical stops. Remember that the rear adjuster only sets the travel limit; it will not hold the load if air pressure is lost. For true load-holding without live air pressure, consider an AirTAC SAIL or BSAI variant, or integrate an external pilot-operated check valve. This SKU uses a reduced mounting set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR options.
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 SAIJ80BX280-100 FAQ
At a higher 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as a mechanical stop that allows you to shorten the effective travel from the nominal 280 mm down to a minimum of 180 mm. It sets the end position but does not lock the load without live air pressure.
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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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