Fluidized bed systems have been used in the pharmaceutical industry for many decades.

The benefits of systems with tangential spray nozzles have become more apparent, thus tending to take over top-spray granulators.

Since the fluidized particles or granules move tangentially at relatively low fluidization height, they do not require a high-volume expansion. This reduces the required installation height, saving cost and production space. Another advantage of the tangential design in plants from L.B. Bohle is that granulation, coating and drying can be carried out in a single system without alteration of equipment setup.

In its fluidized bed system BFS, L.B. Bohle uses tangentially mounted spray nozzles and the patented Bohle Uni Cone BUC^®, a specially slotted air distributor plate with a conical displacement cone for batches of 1 to 500 kg. Its pressure shock resistance of up to 12 bar makes the BFS the ideal choice for organic methods. Short product transfer times and efficient cleaning procedures offer additional potential savings in production time and cost. The geometrically similar structure simplifies scaling-up.

A newly developed, protected multi-purpose valve directly above the distributor plate facilitates the dust-free suction and draining of the product container. Its clear benefits with regards to ergonomics and cleaning make the BFS stand out from other fluidized bed systems on the market.

L.B. Bohle’s fluid bed granulation portfolio includes R&D systems for small production volumes as well as production scale systems.