Passenger Boarding Bridge — Tunnel Steel

The Bukaka Tunnel Steel Passenger Boarding Bridge is a fully enclosed, electro-mechanical apron-drive jetway with a steel-panel tunnel structure. The bridge extends telescopically from a fixed rotunda at the terminal face out to the aircraft door sill, allowing a single unit to serve a range of aircraft positions without repositioning ground equipment. The steel tunnel skin provides robust protection against ramp exposure — UV, sand, humidity, and mechanical impact from ground-support vehicles — making it well suited to high-cycle tropical and desert operating environments.

The unit is designed for small to large commercial airports serving domestic and short-haul international traffic. Its adjustable cabin floor maintains continuous alignment with the aircraft door sill regardless of fuselage type, accommodating the door-sill height variation between narrowbody types (B737, A320 family) and regional jets without manual reconfiguration. An aircraft sealing system closes the gap between tunnel lip and fuselage to exclude rain, wind, and ramp noise, which is particularly valuable in high-humidity Gulf and Southeast Asian climates.

The Dual Sensor Auto-Level System uses redundant circuitry: two independent sensor loops monitor floor-to-sill alignment simultaneously, so a single sensor failure does not compromise the levelling function. Fit bumpers conform to the aircraft contour and are fitted with limit switches to cut drive power before contact pressure reaches harmful levels, while a dedicated anti-collision device prevents bridge-to-bridge and bridge-to-fuselage impact during gate changes. Maintenance demand is low relative to hydraulic alternatives because electro-mechanical drives produce no hydraulic fluid to manage or dispose of. Optional integration includes visual docking guidance systems, 400 Hz ground power units, pre-conditioned air supply, and potable water services — consolidating multiple airside utilities into a single docked assembly.