Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX280-30S 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 SAIJ80BX280-30S
The AirTAC SAIJ80X280-30-S is a double-acting, double-rod ISO 15552 profile cylinder equipped with a rear stroke adjuster. The built-in rear stopper allows you to trim the effective travel, providing a 250-280mm usable stroke window for precise end-position tuning during commissioning.
This SKU features a SUS304 stainless steel piston rod (option B) for superior corrosion resistance and carries the -S magnet option for electronic positioning feedback. The extruded aluminum barrel includes sensor grooves on both sides, accepting AirTAC DMSE solid-state or CMSE reed switches. Pneumatic connections use PT tapered threads, and the cylinder operates at speeds between 30 and 800 mm/s.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-30S |
|---|---|
| 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 SAIJ80BX280-30S
| 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 SAIJ80BX280-30S Is Used
Product Changeovers
Dial in the exact 250-280mm end-stop during format size changes on a packaging line without physically swapping the cylinder or adding external mechanical stops.
Machine Setup
Fine-tune the retract end-position at commissioning to perfectly time the 2513N clamping force against varying workpiece thicknesses.
Adjustable End Stops
Use the 30mm adjustment window to compensate for mechanical wear or slight material variations over time, maintaining precise positioning on the factory floor.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-30S the Right Cylinder?
The adjustable stroke is ideal for machines that undergo frequent product changeovers, allowing operators to dial in the exact 250 to 280mm end-stop without swapping hardware or adding external stops.
Because the 280mm stroke creates a long unsupported rod extension, an external guide is recommended to prevent side-load damage to the rod seals. The rear adjuster acts only as a travel stop and cannot hold a load without live air pressure; for fail-safe load holding, select an AirTAC SAIL or BSAI cylinder. This profile cylinder is dimensionally interchangeable per ISO 15552 and uses a reduced mounting set: 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 SAIJ80BX280-30S FAQ
At 0.9 MPa, the push force increases to 4523N.
The rear adjuster acts as a mechanical stop that lets you shorten the effective travel from the nominal 280mm down to 250mm. This allows precise end-position tuning without changing the cylinder, but it 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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Most inquiries answered within 7-8 hours.
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