Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-50
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX450-50 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 SAIJ80BX450-50
The AirTAC SAIJ80X450-50 is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that allows you to shorten the effective travel by up to 50 mm. This yields a 400-450 mm usable stroke window, letting you dial in the retract end-position precisely during commissioning without adding external stops.
This specific SKU is configured with a SUS304 stainless steel rod for superior corrosion resistance and ships without a magnet, meaning position sensing is not enabled out of the box. The extruded aluminum barrel includes sensor grooves on both sides for future flexibility. The rear adjuster functions strictly as a mechanical stop to set the travel end; it does not hold the load without live air pressure, so a separate SAIL or BSAI lock is required for fail-safe load holding.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-50 Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-50 |
|---|---|
| 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 SAIJ80BX450-50
| 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 SAIJ80BX450-50 Is Used
Variable End-Stop Tuning
Dial in the exact retract position within the 400-450 mm window during machine commissioning without physically swapping cylinders or adding external mechanical stops.
Product Changeover
Quickly adjust the retract distance to accommodate different product sizes on a packaging line, using the rear screw to fine-tune the travel end.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-50 the Right Cylinder?
Choose this 80 mm bore when your application requires significantly more thrust than the 50 mm bore (which provides 982 N at 0.5 MPa) but does not warrant the larger 100 mm frame (delivering 3927 N). The adjustable 400-450 mm travel window is ideal for machine setups requiring variable end-stops during product changeovers, avoiding the need to physically swap out a fixed-stroke SAI cylinder. Because the 450 mm stroke is substantial, the 25 mm rod diameter and M20x1.5 rod thread provide rigidity, but an external guide is strongly recommended to prevent side-loading damage over this long unsupported distance. As an ISO 15552 interchangeable cylinder, it features a PT tapered port and supports the reduced SAIJ 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 SAIJ80BX450-50 FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster acts as a mechanical stop that lets you trim the nominal 450 mm stroke back by up to 50 mm, creating a 400-450 mm usable travel window. It only sets the end position and 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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