A centrifuge for separating feed material into component parts, in one aspect primarily solid and primarily liquid parts, the centrifuge, in certain aspects, including a conveyor rotatably mounted in a rotatable housing, the conveyor having an interior and at least one impeller, the rotatable housing having a separating region with a pool area and a beach area with feed material passable through the interior of the conveyor, the feed material directed radially by the impeller(s) and spread by the impeller(s), in certain aspects along the conveyor or part thereof, onto part of the pool area, and/or in certain aspects onto the beach area.