Abstract: A drum assembly for turning material. The drum assembly includes a drum having a first end, a second end, a rotational axis extending through the first end and the second end about which the drum rotates. The drum includes a first outer portion, a second outer portion, and a central portion. A plurality of centering paddles are connected to the drum and configured to move material toward a central plane. A plurality of dispersal paddles are connected to the drum and configured to move material away from the drum in a direction generally perpendicular to the rotational axis. A plurality of spreading paddles are connected to the drum and configured to move material away from the central plane.

Abstract: Drum assemblies for turning material are disclosed. Drum assemblies may include at least three types of paddles arranged thereon for improved turning of composting material and for creating a windrow of improved shape.