(c) Closed Belt Conveyor: In a closed belt conveyor, the specially fabricated belt, after being loaded with the material, can be wrapped completely around the load.
It essentially forms a closed tube moving along with the material. The advantages of a closed belt conveyor are:
(i) it can handle fragile materials safely and without breaking by reducing inter particle collision,
(ii) it can handle fine bulk materials without being swept by air (however, it is not
really air tight at loading and unloading points), (iii) ability to handle corrosive and reactive materials without contamination and (iv) the tubed belt can travel around bends in more than one plane and hence versatile in layout.