Manufacturers and other industries use the process of dry granulation to increase the bulk density of powders. The process of dry granulation involves getting powder particles to adhere to each other without the use of liquid, which results in larger granules. Increasing the particle size can result in a better material flow through a roller compactor. This is necessary for manufacturing of such items as tablets and capsules on high speed production. There is also an improvement in the homogeneity of the active ingredients within the blend of powder which results in more uniform dosages needed in such industries as the pharmaceutical industry. In addition, bonding the particles of assorted substances together during the compaction process reduces the tendency to segregate the powder particles of different substances.

Dry Tablet Manufacturing Process

In the dry tablet manufacturing process, tablets are formed from completely dry mixes.

This is possible for certain types of formulation. The dry powder mixtures are pre-compressed, size reduced to granules and then re-compacted in the tablet press. The pre-compression stage can be accomplished with various types of equipment; hammermills are commonly used but are not the most efficient or effective machine to use. One of the most important aspects of size reduction of compacted products is to minimize or eliminate fines; hammermills create high levels of fines

Size Reduction of \”Ribbons\” from the Roller Compactor

Roller Compaction involves a feeding system which conveys the powder to the compaction area between the rolls. At the compaction area, there is a compaction unit where the powder is compacted between two counter rotating rolls to a ribbon by employing a force.

A size reduction unit is used for milling the ribbons to the chosen particle size.

Depending on the quantity of powder provided, the distance between the rolls change, however, the applied force will remain constant and unchanged.

Industry Applications

The applications for this innovative compaction technology are numerous and wide ranging. You have the ability to process just about any type of powder. For instance, it can be used in the pharmaceutical industry for the production of antibiotics and other drugs, chemical industry such as for the production of certain types of chemicals, coloring, plastics, and more, cosmetic industry for various types of make- up, and the food industry for making vitamins, flavorings, animal feeds, and more. The benefits of dry granulation with a roller compactor are numerous and include highly efficient processing, continuous processing, energy efficient, minimal waste, and low maintenance costs.

Benefits of Roller Compactor

Innovations in dry granulation processes, particularly in the roller compactor, have resulted in efficiencies in the size reduction of compacted product and have been able to reduce fines generation and boost capacity. In addition to the better particle size distribution, a quality roller compactor will enable your factory floor to benefit from low dust, low noise, low energy, and quick screen change operation. When you choose a high quality Roller Compactor, you will get dry granulation equipment you can rely on and benefit from maximum up-time and yield.

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