Centrifugal Bucket Elevators
From Bucket Elevators
Centrifugal elevators are used to handle fine free flowing materials. The buckets travel at speeds high enough to discharge material by centrifugal force as they pass around the head sprocket/pulley. Casings can be made from carbon steel, stainless steel and other harder materials as required by the application.
The main advantage of a centrifugal elevator over a continuous elevator is the ability to dig out of the boot, allowing for a lower feed point which can reduce pit costs.
The two primary types of centrifugal elevators are chain and belt. Chain elevators will handle the non-abrasive materials while belt elevators will handle more abrasive material as long as there are no slivers or sharp objects.