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-abriasive materials while belt elevators will
handle more abrasive material as long as there are no slivers or sharp objects.