Abstract: A clean-in-place decanter centrifuge for processing a combined liquid and solid material to separate the solid material from the liquid. The centrifuge is designed for use in the food processing industry, particularly for dairy products, and therefore has fluid injectors for cleaning all surfaces within the centrifuge including the opposed mating surfaces which function as non-contacting seal mechanisms. The centrifuge has no metal-to-metal contact areas within the interior of the bowl and scroll assembly. In one embodiment, the outer wall of the bowl and scroll assembly comprises a plurality of drain lines located in the rear wall section of the bowl to allow essentially all liquid to drain from the bowl and scroll assembly. In another embodiment, the bowl hub comprises at least one drain line to allow lubrication oil to drain into said cavity and prevent ingress of lubrication oil into said bowl and scroll assembly.

Abstract: A horizontal centrifuge has a basket rotatably mounted within a housing. The basket has a plurality of rings disposed between open and closed ends of the basket and a plurality of guide rails circumferentially spaced with respect to the rings. The guide rails have respective lengths extending between the open and the closed ends of the basket and provide a plurality of respective bearing surfaces. A tubular screen is supported in the basket by the plurality of bearing surfaces of the guide rails. A scroll with helical screw flights is also rotatably mounted within the basket. In various aspects of the invention, the tubular screen is made from six arcuate screen segments; the bearing surfaces of the guide rods and the peripheral edges of the helical screw flights are machined surfaces; and the scroll is fabricated.

Abstract: A self-cleaning scroll and screen centrifuge for processing a combined liquid and solid material to separate the solid material from the liquid. The centrifuge is designed for use in the food processing industry and therefore has fluid injectors for cleaning all surfaces within the centrifuge including opposed mating surfaces which function as noncontacting seal mechanisms.

Abstract: A sampling machine for moving a sampling scoop through bidirectional full rotations which are effective to remove multiple sample volumes from a moving conveyor. The sampling scoop has a home position which is maintained by the its drive without requiring a separate brake. A programmable control provides a full range of multiple sampling cycles at high sampling rates. The sampling scoop cavities are comprised of three straight flat surfaces including a pusher surface which is substantially vertical as the sample volume is pushed off an edge of the moving conveyor.

Abstract: A scroll and screen centrifuge especially suited for processing abrasive materials in which the surfaces of the screw flights on the scroll members contain recessed abrasion resistant shields. The abrasion resistant shields have an upper exposed surface flush with the front surfaces of the screw flights. The scroll members also have feed openings designed for material flow which further reduces the abrasion of the scroll member.