The mechanically fluidized bed allows for the uniform addition of varying percentages of liquids onto solids.
The liquid percentages can be as low as 0.5% by weight of the batch up to the maximum loading for each product. The liquids can be atomized using various nozzles located in the mixer body or a top mounted stack.
Liquids with higher viscosity can be introduced to the mixer through a nozzle using a gas to assist in atomization. Higher percentages of viscous liquids can benefit from the action of the high speed choppers to provide the dispersing action.
Depending on the products, a liquid loading of viscous liquids onto excipient powders can reach as high as 65%–75% of the batch weight, depending on the materials.