The Fluid Bed Dryer passes controlled temperature air upward through a perforated distributor plate at a velocity sufficient to suspend the material bed. At the correct air velocity for a given material’s particle size and bulk density, the particles enter a fluidized state — each particle is individually airborne and in continuous contact with the drying air stream on all surfaces simultaneously. This is the fundamental difference from tray drying, where particles sit in a static bed and drying proceeds from the surface downward as heat slowly conducts through the material.

• Fluidized bed — all particles in simultaneous air contact; intensive heat and moisture exchange across free-flowing powders, crystals, granules, pellets and seeds
• Shaking bed technology (Therma Process) — controlled, product-friendly transport with stable residence time; less particle damage than vibration-based systems
• Multi-zone configuration — drying and cooling zones in a single machine, each with independent temperature, airflow and residence-time settings
• Precise moisture control — outlet humidity sensor closes the control loop; same machine tested before full-scale design to validate fluidisation, drying rate and scale-up
• Sterile HEPA-filtered air option for post-sterilization FBD integrated with MHTST / MPAS lines
• Energy recovery, heat recovery, inert gas, ATEX and hygienic/CIP designs available