Bohle Fluid Bed Sytsem BFS - Bohle Uni Cone BUC®
With the Bohle Uni Cone BUC ® process, L.B. Bohle can protect a new development method for precise coating of particles as a utility model right now. “This method works much more accurately and evenly than the conventional Wurster process”, says the CEO Lorenz Bohle.
The Wurster process is used, when small particle, so called pellets, must be coated. Biggest weaknesses are hardly calculable setting parameters and the spray nozzles in the bottom.
"We have developed two major changes that solve both problems of the Wurster process", says Bohle. A sloping floor and a conical tip in the center provide a uniform turbulence of the product. Simultaneously, the coating substance is spray to lateral nozzles. "We thus reach a hitherto possible coating uniformity, the losses are under one percent in a very complex process", said Bohle. Furthermore the Bohle Uni Cone BUC ® guarantees high yields in the final product due to absence of particle twinning effects. "The losses are under one percent in a very complex process."
The tangential nozzles have also enhanced quality advantages in handling.
By this reasons using the tangential BFS represents state of the art in pharmaceutical manufacturing for particle coating, granulation and drying.