VDW Verein Deutscher Werkzeugmaschinenfabriken e.V.

The Turbodry® Agitated Vacuum Pan Dryer was developed to process a wide variety of products. The machines have proven to be particularly suited for the drying of difficult products such as agglomerating sticky as well as heat sensitive products. The agitator with vertical movement in addition to its rotational movement assures agitation of the total product volume and permits to overcome critical phases during the drying process. The machines meet the following requirements: - Simple operation and easy validation - Ease of cleaning and inspection - Operational flexibility - High efficiency and thus short drying times In compliance with cGMP and FDA guidelines: - agitator supported on dished top only, without any seals in the product area - excellent cleanability using CIP Systems Calculation, design and manufacture in accordance with ASME pressure vessel code, Section VIII, with U-Stamp and/or Pressure Equipment Directive (PED) 97/23/EC.

The double mechanical seal is installed on the dished top head, above the area wetted by the product and is well accessible for cleaning and maintenance purposes.

Dry or wet running mechanical seals may be installed.

The agitator shaft is sealed by a metal bellows over its entire length.

Simultaneous rotational and vertical agitator motions result in a very efficient and even mixing of the entire product mass, also preventing local overheating and the formation of lumps.

Sensitive products are protected by minimizing the shear forces acting onto the product.

Highly viscous products can be dried faster by lifting the product lump formed in the machine.

The agitator is designed to have a large surface for maximum possible heat transfer.

The cylindrical vessel, the flat base and the agitator are machined to assure the smallest possible tolerances between agitator and vessel wall and flat bottom respectively.

Smallest possible tolerances also permit good heat exchange and prevent product adherence to the vessel wall and flat bottom.

All internal surfaces are mirror polished, to improve the flow behavior of powdery products, the prevention of microdeposits as well as to facilitate cleaning.