Impeller/Paddle

An impeller or paddle is a critical rotating element within agitation systems, designed with specific blade geometries to create fluid motion through centrifugal force, axial flow, or radial displacement. It converts mechanical energy from a drive shaft into kinetic energy within the fluid, enabling homogeneous mixing, heat transfer, particle suspension, or chemical reaction enhancement in industrial processes.

Operates by rotating within a fluid medium, where blade design determines flow patterns: radial impellers discharge fluid perpendicular to the shaft for high shear; axial impellers move fluid parallel to the shaft for high flow; and specialized paddles create folding or sweeping actions. The rotation generates velocity gradients and turbulence, ensuring uniform distribution of components.