Well built
Technologies for pellets and granules

Free-flowing, dust-free particles are preferred by companies who need to deal with granular solids. In these cases it is good to know companies offering different process technologies for creating granules and pellets.

Granules can be formed from solid and/or liquid raw materials, with control over a wide range of properties including bulk density, residual
moisture, particle size and solubility. The quality of the granules can be further enhanced by using coating or encapsulation technologies to add an active surface layer.
With more than 40 years of experience, Glatt offers not only the equipment for these processes but also contract manufacturing and engineering services. The latest service offered is product development. In close co-operation with the customer, product know-how from the customer is combined with the company’s equipment and process know-how to develop new products with new functionality.
The ability to run the project from a single source, from the initial idea through to plant commissioning, helps bring new products to market quickly and smoothly.

Spray granulation of liquids
Using suitable granulation technology, liquid raw materials can be transformed into dry granules in a single process step. Unlike spray drying, where every sprayed droplet becomes a single particle, in granulation the liquid is sprayed into a fluidized bed. The liquid coats the fluidized particles and dries onto their surfaces, while new seed particles are formed continuously, some from fresh droplets and others from abrasion within the bed. Mixing different raw materials in the liquid phase results in an ideal mixture of these raw materials in the granules. The liquid raw materials can be solutions, suspensions, melts or emulsions. Spray granulating an emulsion of aromatic oils, for instance, results in
granules with microencapsulated oil droplets with a much longer shelf life than liquid products.
The quality of the granules can be further enhanced by using coating or encapsulation technologies to add an active surface layer. For example, Glatt technology has been proven successful for encapsulation of flavors, microorganisms and vitamins.