Abstract: A disc and spacer for transporting materials on a roller screen. The disc includes a circular main body and a wear resistant portion. The circular main body has a centrally arranged opening, through which opening a centrally arranged imaginary axis extends. The wear resistant portion is arranged around the circular main body and includes a plurality of protuberances that are circumferentially arranged along the periphery of the wear resistant portion and which, project radially outward from the main body. The wear resistant portion has a first material and the main body has a second material, the first and second materials having different wear resistant properties.

Abstract: A method of producing a composite product having cemented carbide tiles embedded in a metal surface thereof, a cemented carbide tile suitable for use in the method and a composite product including such cemented carbide tiles is provided. A mould for casting the product is prepared. Cemented carbide tiles having through holes or recesses are placed at desired surfaces of the mould and secured to the desired surfaces of the mould by fastening elements, such as nails or pins, such that at least part of an elongated body of each respective fastening element protrudse out from respective openings of each through hole or recess facing the mould surface and into the material of the mould to secure the respective cemented carbide tiles in place. Molten metal is poured into the mould to cast the composite product, the casting of which is removed after solidification.

Abstract: A disc and spacer for transporting materials on a roller screen. The disc includes a circular main body and a wear resistant portion. The circular main body has a centrally arranged opening, through which opening a centrally arranged imaginary axis extends. The wear resistant portion is arranged around the circular main body and includes a plurality of protuberances that are circumferentially arranged along the periphery of the wear resistant portion and which, project radially outward from the main body. The wear resistant portion has a first material and the main body has a second material, the first and second materials having different wear resistant properties.

Abstract: A ceramic wear plate includes a plurality of ceramic tiles embedded in rubber, the rubber enclosing the ceramic tiles in a plane of the ceramic wear plate such that lines of rubber strings are positioned between the ceramic tiles. The ceramic wear plate includes a number of first rubber strings extending in a first direction in the plane of the ceramic wear plate, a number of second rubber strings extending in a second direction in the plane, and a number of third rubber strings extending in a third direction in the plane. Each of the first second and third rubber strings extend in a continuous straight line between two different edges of the ceramic wear plate. The first, second and third directions are different directions and the edges extend in a direction parallel to the plane. A method of covering an area with the ceramic wear plates is also provided.

Abstract: A distributor plate assembly for a vertical shaft impact (VSI) crusher is optimized for abrasion wear resistance. The distributor plate includes a plurality of plate segments, each segment being formed from a main body of ductile iron alloy having cemented carbide granules embedded within the iron alloy.

Abstract: A distributor plate assembly for a vertical shaft impact (VSI) crusher is optimized for abrasion wear resistance. The distributor plate includes a plurality of plate segments, each segment being formed from a main body of ductile iron alloy having cemented carbide granules embedded within the iron alloy.