Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-100
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX450-100 is a genuine double-acting ISO 15552 profile-barrel air cylinder with a Ø80mm bore and 450mm 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
- Stroke450 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 SAIJ80BX450-100
The AirTAC SAIJ80X450-100 is a double-acting, double-rod ISO 15552 profile cylinder featuring a rear-mounted stroke adjuster. It provides a nominal 450 mm stroke with an integrated 100 mm adjustment range, yielding a usable travel window of 350 to 450 mm.
This configuration includes a SUS304 stainless steel rod for superior corrosion resistance and uses PT tapered port threads. Because the 450 mm stroke is relatively long, the 25 mm rod diameter and M20x1.5 rod thread provide robust support, though an external guide is still recommended to manage side loads. The rear stopper allows precise end-position tuning during commissioning without swapping the cylinder.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-100 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-100 |
|---|---|
| Series | SAI ISO 15552 profile cylinder |
| Bore size | Ø80 mm |
| Stroke | 450 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 SAIJ80BX450-100
| SAI | ISO 15552 profile-barrel cylinder series. |
|---|---|
| 80 | Bore size in mm. |
| ×450 | 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 SAIJ80BX450-100 Is Used
Product Changeover
Dial in the 350-450 mm travel window on the fly to accommodate different package sizes on a packaging line without changing the physical actuator.
Machine Setup
Fine-tune the exact end-of-stroke position during commissioning using the rear stopper, ensuring precise mechanical alignment before full-speed operation.
Variable End Stops
Provide adjustable physical stops for diverter gates or pushing mechanisms where the required stroke length may vary between production runs.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-100 the Right Cylinder?
The 100 mm adjustment range is ideal for machinery requiring flexible end-stops during product changeovers, eliminating the need to physically swap out a fixed-stroke SAI cylinder. To match this ISO 15552 footprint exactly, specify an 80 mm bore, 450 mm stroke, PT port threads, SUS304 rod, and no magnet.
For a 450 mm stroke, always ensure adequate external guiding to prevent excessive side-loading on the rod. Remember that the rear adjuster functions strictly as a travel stop to set deceleration, not as a locking device; the cylinder cannot hold a load without continuous air pressure. For true load-holding, consider an external rod lock or the AirTAC SAIL series.
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 SAIJ80BX450-100 FAQ
At the maximum 1.0 MPa pressure, it can deliver up to 513 kgf.
The rear adjusting screw acts as a stopper that lets you shorten the effective stroke by up to 100 mm. This creates a usable travel window of 350 to 450 mm, allowing you to trim the end position without adding external stops.
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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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