Belt Conveyor

The longest belt conveyor system in the world is in Western Sahara. It is 98 km (61 mi) 

long, from the phosphate mines of Bu Craa to the coast south of El-Aaiun.[3]

The longest conveyor system in an airport is the Dubai International Airport baggage 

handling system at 63 km (39 mi). It was installed by Siemens and commissioned in 2008, and 

has a combination of traditional belt conveyors and tray conveyors.[4]

Boddington Bauxite Mine in Western Australia is officially recognised as having the world's 

longest and second-longest single belts with a 31-kilometre-long (19 mi) belt feeding a 20 

km (12.5 miles) long belt. This system feeds bauxite through the difficult terrain of the 

Darling Ranges to the alumina refinery at Worsley. The longest single-belt international 

conveyor runs from Meghalaya in India to a cement factory at Chhatak Bangladesh.[5][6][7] 

It is about 17 km long and conveys limestone and shale at 960 tons/hour, from the quarry in 

India to the cement factory (7 km long in India and 10 km long in Bangladesh). The conveyor 

was engineered by AUMUND France and Larsen & Toubro. The conveyor is actuated by three 

synchronized drive units for a total power of about 1.8 MW supplied by ABB (two drives at 

the head end in Bangladesh and one drive at the tail end in India). The conveyor belt was 

manufactured in 300-meter lengths on the Indian side and 500-meter lengths on the 

Bangladesh side, and was installed on-site by NILOS India. The idlers, or rollers, of the 

system are unique[citation needed] in that they are designed to accommodate both horizontal 

and vertical curves along the terrain. Dedicated vehicles were designed for the maintenance 

of the conveyor, which is always at a minimum height of 5 metres (16 ft) above the ground 

to avoid being flooded during monsoon periods.

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