Drum blenders provide a no shear gentle mixing action particualry suited to delicate and abrasive materials. Rotary drum blenders are often highly efficent and simple to operate.
Drum blenders are usually in the form of a horizontal cylinder which is mounted on trunnions. Internal baffles are mounted along the inner walls of the vessel. The inlet is typically located at the top center of the vessel and the outlet at the bottom centre. The blender tumbles and the internal baffles gently lift and aerate the material preventing it from sliding along the blender bottom, they also de lump the material.They are used in a number of different process industries and can be constructed from stainless and mild steel. Manufacturers of rotary drum blenders include JR Boone and Lindor.