Fluid bed dryer is a process unit for Drying of granulated materials for solid dosage forms in batch operations. The Lödige Fluid Bed Processor is designed for Drying, Instantising, Granulating and Coating. The processor runs in batch operation. The heated inlet air homogeneously flows through the special designed Conidur® bottom into the product vessel, fluidizes the product and keeps it in constant motion. This ensures an excellent heat transfer and high drying rate. Integrated jet filters separate the product area from the pure gas area. The product particles are held back in the processor and retained in the process. The process air leaves the processor at the top.