Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-30S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX300-30S 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 SAIJ80BX300-30S
The AirTAC SAIJ80X300-30-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 270-300 mm usable travel window. The extruded aluminum barrel includes sensor grooves on both sides for flexible switch mounting.
This 80 mm bore unit uses a G3/8 PT tapered port and provides variable air cushioning at both ends to decelerate the moving load. The rear stopper screw allows precise end-position tuning during commissioning without adding external physical stops, acting purely as a travel limiter rather than a load-holding brake.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-30S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-30S |
|---|---|
| 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 SAIJ80BX300-30S
| 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 SAIJ80BX300-30S Is Used
Product Changeover
Quickly dial the stroke back by up to 30 mm on packaging lines when switching to a different carton size, avoiding mechanical teardown.
End-Position Calibration
Fine-tune the retract stop during machine commissioning to perfectly seat heavy 80 mm bore assemblies without adding external stopper blocks.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX300-30S the Right Cylinder?
If your setup needs less force, stepping down to a 63 mm bore yields 2182 N at 0.7 MPa, whereas moving up to a 100 mm bore provides 5497 N. The adjustable 270-300 mm travel window is ideal for dialing in exact end positions without swapping the cylinder.
Because the 300 mm nominal stroke creates a long unsupported rod extension, incorporating an external guide rail is highly recommended to prevent side-load damage to the rod seal. Remember that the rear adjuster and air cushions only manage deceleration; they do not hold the load without live air pressure. For true fail-safe load holding, consider an AirTAC SAIL pneumatic lock or BSAI clamp-lock cylinder instead. This unit is dimensionally interchangeable per ISO 15552 and includes a -S magnet for position sensing.
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 SAIJ80BX300-30S FAQ
The rear adjuster screw allows you to shorten the 300 mm nominal stroke by up to 30 mm, creating a 270-300 mm usable travel window. This stopper only limits the travel distance; it does not lock or hold the load without continuous air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
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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