How do I choose a mixing impeller?
To choose an impeller the volume of the mixture, the size of the mixing vessel and the viscosity of the mixture should be known. The diameter of the mixing blade should measure one third of the diameter of the vessel, and be placed a distance of one third the diameter of the vessel up from the bottom of the vessel.
For thicker mixtures, use a square or “U” shaped anchor paddle. These paddles have more surface area to contact the thick product being mixed. Because thicker mixtures are usually mixed more slowly a paddle diameter closer to the full diameter of the vessel can be used so that the product close to the edge of the vessel is mixed. (A150, A250 are examples of square blade paddles; U022, U044, U055, U510 or A183 are examples of anchor paddles).