IMPROVED SIFTING SCREEN

摘要

The invention relates to a screen frame adapted for use in a shaker to separate solids from a liquid/solid mixtureand to which woven wire mesh is to be attached, comprising an outer perimeter and a plurality of plastics ribs extending between opposing regions of the perimeter, the plastics ribs together forming an upper face and a lower face, wherein the frame further comprises at least one metal rib extending between opposing regions ofthe perimeter and extending from the upper face to the lower face, and to a shaker comprising at least one such screen frame.