Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-75S
The AirTAC SAIJ80 Adjustable Cylinder SAIJ80BX450-75S 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 SAIJ80BX450-75S
The AirTAC SAIJ80X450-75-S is a double-acting ISO 15552 profile cylinder featuring a rear stroke adjuster that creates a 375 to 450 mm usable travel window. The integrated magnet allows seamless position detection with CMSE reed or DMSE electronic sensors.
This adjustable-stroke design allows precise end-position tuning during commissioning without swapping the cylinder or adding external stops. The rear screw acts purely as a travel stop and works alongside the standard air cushions to decelerate the load; it does not hold the load without live air. Mounting options include the reduced SAIJ set of Basic, FA, LB, TC, FTC, TCM1, and TCM2, omitting FB, CA, CB, and CR.
Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-75S Technical Specifications
| Model | Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-75S |
|---|---|
| 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 SAIJ80BX450-75S
| 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 SAIJ80BX450-75S Is Used
Product Changeovers
Quickly reconfigure the 375-450 mm travel window for varying package sizes on a packaging line without replacing the actuator.
Machine Setup Tuning
Fine-tune the exact end-of-stroke position during initial commissioning to perfect pressing or forming forces.
Adjustable Diverting
Modify the stroke length on the fly for a diverting gate handling different pallet widths on a conveyor system.
Is the Airtac SAIJ80 Adjustable Cylinder SAIJ80BX450-75S the Right Cylinder?
The 75 mm adjustment range is ideal for product-size changeovers on a line, allowing operators to dial in the exact end-stop without mechanical rebuilds. Because the nominal stroke is 450 mm, an external guide is recommended to support the rod and prevent excessive side-loading on the long travel.
For an exact ISO 15552 replacement, match the 80 mm bore, 450 mm stroke, 75 mm adjustment, PT port thread, and the -S magnet requirement. If the machine needs to hold a load securely without continuous live air pressure, a plain SAIJ cylinder will not suffice; consider an AirTAC SAIL pneumatic lock, a BSAI clamp-lock cylinder, or an external rod lock 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 SAIJ80BX450-75S FAQ
At 0.7 MPa, the push force increases to 3518 N.
The rear adjuster screw allows you to shorten the effective stroke by up to 75 mm, creating a usable travel window of 375 to 450 mm. The adjuster functions as a mechanical stop and does not lock the load without live air pressure.
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Genuine AirTAC parts produced by AirTAC factory.
1-Year Warranty
Covers non-human-caused product damage.
Fast Dispatch
Standard models are processed and dispatched in 3-5 business days.
Fast Reply
Most inquiries answered within 7-8 hours.
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