Abstract: A method of installing tiles via interposed tile carriers on a scroll of a centrifuge comprises mounting each tile carrier (11) prior to a welding step in the required position on a centrifuge flight by means of an individual tile clamp (32), with mechanical inter-engagement between each carrier (11) and its clamp (32), thus positioning each carrier (11) in the same position relative to its clamp (32) on each application, the tile clamps (32) being of a set width, so that when mounted side by side they pitch the carriers (11) so that when the tiles (10) are inserted there are no gaps between the tiles, thus giving a smooth surface without having to dress the tiles. Mounting is followed by welding the carriers (11), whilst held in position by the tile clamps to the centrifuge flight. The tile clamps; are then removed and once the tile carriers have cooled down to ambient temperature the tiles (10) are inserted and secured to their respective carriers (11).

Abstract: A wear and/or abrasive resistant tile e.g. for use on a scroll of a classifier, comprises a front, working face and a rear, mounting face defined by an upper face portion and a lower face portion spaced rearwardly from the upper face portion, the upper and lower face portions being in parallel planes; an upwardly projecting, upper lip formation defining an upper edge of the lower face portion; a downwardly projecting lower lip formation defining a lower edge of both the lower face portion and the tile, the lower lip defined by a chamfered face extending towards the lower face portion, with a lower surface of lower lip formation being non-pointed, and stepped upwardly from a geometrically projected apex, and at least one groove provided in the rear mounting face of the tile. A carrier is also included, and the carrier has a transverse slot. Also included are a tile and carrier combination, and a scroll provided with tile and carrier combinations.