Abstract: Spacers for cage presses having a cylindrical cage formed of axially extending radially spaced screen bars, each spacer having an L-shaped configuration formed of a single piece of sheet material having approximately the thickness of the desired width of opening between innermost edge portions of adjacent screen bars, and secured at uniform spacings along the length of an adjacent screen bar with the leg portion extending inwardly of the cage and terminating adjacent the innermost edge portions of adjacent screen bars and in contact therewith to establish the minimum separation between adjacent screen bars, and having the foot portion extending substantially tangentially and in contact with the adjacent screen bars near the outer edge portions of the screen bars, each spacer being welded to the adjacent screen bar on the leg portion of the spacer.