Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX280-75 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 SAIJ80BX280-75
The AirTAC SAIJ80X280-75 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 75 mm. This creates a highly flexible 205 to 280 mm usable stroke window, perfect for dialing in final end positions during machine commissioning without swapping hardware.
This specific configuration utilizes a SUS304 stainless steel rod (code B) for superior corrosion resistance and includes PT tapered port threads with a G3/8 connection. The extruded aluminum barrel incorporates sensor grooves on both sides, ready to accept AirTAC CMSE reed or DMSE electronic switches if a magnet is added later. Mounting options include Basic, FA, LB, TC, FTC, TCM1, and TCM2.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-75 |
|---|---|
| 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 SAIJ80BX280-75
| 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 SAIJ80BX280-75 Is Used
Product Changeovers
Leverage the 205-280 mm adjustable travel window to quickly adapt machinery for varying product lengths without physically replacing the cylinder.
End-Position Tuning
Fine-tune the exact retract position during machine commissioning using the rear stopper, avoiding the need for external shims or mechanical stops.
Corrosive Assembly Lines
Utilize the SUS304 stainless steel rod to reliably drive 2513 N loads in washdown or mildly corrosive industrial manufacturing environments.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX280-75 the Right Cylinder?
Select this 80 mm bore when an application requires substantial thrust—stepping up from a 63 mm bore increases push force from 1559 N to 2513 N at 0.5 MPa. The 75 mm adjustment range is ideal for product-size changeovers on a line, letting operators set variable end-stops on the fly. Because the 280 mm stroke is relatively long, ensure external guide rails are used to support the load and prevent excessive side-loading on the M20x1.5 rod.
For a direct replacement, match the 80 mm bore, 280 mm stroke, 75 mm adjuster, PT port thread, and SUS304 rod material. Remember that the rear adjuster acts only as a travel stop and does not hold the load without live air; for fail-safe load holding without pressure, consider an AirTAC SAIL or BSAI cylinder instead.
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 SAIJ80BX280-75 FAQ
The rear adjuster screw acts as a mechanical stop, allowing you to shorten the effective stroke by up to 75 mm. This provides a usable travel window of 205 to 280 mm. Note that this stopper only sets the end position; it does not lock or hold the load without continuous air pressure.
At the maximum rated pressure of 0.9 MPa, the push force increases to 4523 N.
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1-Year Warranty
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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