Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-75
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX300-75 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 300mm 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
- Stroke300 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 SAIJ80BX300-75
The AirTAC SAIJ80X300-75 is a double-acting ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. The extruded aluminum barrel includes sensor grooves on both sides for straightforward position feedback.
This configuration uses a SUS304 stainless steel rod for superior corrosion resistance and carries an M20x1.5 rod thread. The rear stopper acts purely as a travel end-setter, not a load lock, meaning live air is required to hold position. For static load-holding without air pressure, an external pilot-operated check valve or a related BSAI clamp-lock cylinder is required.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-75 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-75 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 300 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 SAIJ80BX300-75
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×300 | 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 SAIJ80BX300-75 Is Used
Machine Changeover
Dial in the exact retract position from 225 to 300mm during product size transitions without physically replacing the cylinder or shimming external stops.
Variable End-Stop Diverter
Adjust the stroke on a sorting diverter arm to accommodate different package lengths on the fly, ensuring precise routing without hardware changes.
Press Stroke Tuning
Fine-tune the end-of-stroke contact point on a light-duty press to compensate for material thickness variations, preventing over-travel.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-75 the Right Cylinder?
The adjustable-stroke design is ideal for product-size changeovers on a line, allowing you to fine-tune the retract end-position without swapping cylinders or adding external stops.
Because the 300mm stroke is substantial, the 25mm SUS304 rod and M20x1.5 thread provide rigidity, but an external guide is strongly recommended to prevent side-loading damage. This SKU uses PT tapered ports and supports the SAIJ mounting subset: Basic, FA, LB, TC, FTC, TCM1, and TCM2. As a standard ISO 15552 profile cylinder, it is dimensionally interchangeable with other ISO 15552 cylinders without requiring custom mounting plates.
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 SAIJ80BX300-75 FAQ
At 0.7MPa, the push force increases to 3518N.
The rear adjuster screw allows you to reduce the effective stroke from its 300mm nominal length down to 225mm. This creates a 225-300mm travel window, enabling precise end-position tuning at commissioning without altering the cylinder mounting.
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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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