Automatic Roller Shutter Doors for Chengdu Airport Cargo Screening
SEPPES supplied 14 automatic roller shutter doors for cargo screening points at Chengdu Airport in China. Each aluminum door measured W800 × H1500 mm and formed a controlled boundary between conveyor scanning equipment and the adjacent personnel passage.
The doors were designed to support both direct operator control and automatic opening signals. Depending on the approved site logic, a cargo-arrival signal can come from a photoelectric sensor, radar, or PLC. The door system can also coordinate with the conveyor, scanner, safety fence, and emergency-stop circuit.
Project Snapshot
| Project item | Confirmed detail |
|---|---|
| Installation | Chengdu Airport cargo screening area, China |
| Product | Aluminum automatic roller shutter doors |
| Quantity | 14 doors |
| Door size | W800 × H1500 mm each |
| Primary purpose | Separate conveyor scanning equipment from personnel passages |
| Local operation | Remote push button |
| Automatic control | Photoelectric sensor, radar, or PLC signal according to site logic |
| Integration | Conveyor, scanner, safety fence, and emergency-stop coordination |
Why Automatic Roller Shutter Doors Were Used？
Cargo screening combines material movement, inspection equipment, personnel access, and controlled operating zones. An unprotected transfer opening can create an unintended path into the equipment area. The door therefore needed to work as part of the inspection sequence, not as an isolated building shutter.
The compact W800 × H1500 mm openings were sized for cargo transfer rather than full vehicle access. An aluminum shutter could clear the conveyor opening vertically without requiring a swing radius around the equipment.
The International Civil Aviation Organization describes cargo security as a supply-chain process involving screening, access control, oversight, and protection against unauthorized interference. Its air cargo security principles rovide broader industry context; the project door remains only one component of the airport’s approved security and equipment-safety system.
How the Airport Door System Works？
Equipment-Zone Separation
When closed, the automatic roller shutter doors separate the operating conveyor and scanner zone from the personnel route. This helps reduce casual or accidental entry into an active equipment area.
Local Operator Control
A remote push button gives authorized personnel direct control when a manual opening or closing command is required. Button location and operator visibility should be coordinated with the cargo handling procedure.
Automatic Cargo-Arrival Signal
When cargo reaches the transfer point, an approved sensor or PLC signal can request door opening. The selected sensor, detection position, delay, and reset sequence must match the conveyor layout and the site’s controls specification.
Conveyor and Scanner Interlocking
The doors can exchange signals with the cargo conveyor and scanning equipment. The final logic can prevent a process step from beginning until the door reaches the required position, subject to the customer’s control and safety design.
Emergency and Safety Coordination
The door can be included in the equipment’s wider safety-fence and emergency-stop logic. A normal control signal must not be treated as a safety-rated function unless the complete architecture, components, validation, and stopping response are designed accordingly.
Project Configuration and Operational Purpose
| Requirement | SEPPES configuration | Operational purpose |
|---|---|---|
| Multiple inspection openings | 14 matching aluminum roller shutter doors | Consistent operation across the screening line |
| Compact cargo transfer point | W800 × H1500 mm opening per door | Fits the conveyor interface without opening the personnel boundary |
| Direct operator command | Remote push button | Allows deliberate local control |
| Automatic cargo flow | Photoelectric, radar, or PLC opening signal | Coordinates opening with cargo arrival |
| Restricted equipment area | Door, fence, scanner, and conveyor integration | Maintains a controlled interface between people and machinery |
The 14 installed units were produced for this airport project. Dimensions, motor, control voltage, opening speed, material thickness, and safety devices must be confirmed for any new order rather than copied from this case.
Why Aluminum Was Suitable for the Compact Openings
Aluminum shutter construction provides a rigid, corrosion-resistant curtain with a relatively compact vertical operating path. For the airport screening line, the material and form supported a neat equipment interface across 14 repeated openings.
That does not mean aluminum is the only option for every conveyor opening. A flexible high speed door, machine-protection door, sectional door, or fixed guarded opening may be more suitable depending on cycle frequency, hazard type, clear opening, required speed, wind, security, and maintenance access.
Buyer Checklist for Similar Conveyor Openings
Before selecting **automatic roller shutter doors** for screening or material-handling equipment, confirm:
– Clear transfer opening and maximum cargo envelope.
– Conveyor speed and arrival sequence.
– Required door opening and closing time.
– Sensor type and detection position.
– PLC input/output signals and voltage levels.
– Scanner and conveyor permission logic.
– Emergency-stop and restart sequence.
– Safety-fence interface and access points.
– Manual-control location and operator visibility.
– Maintenance access, power isolation, and fault recovery.
