A Coating Machine, specifically in the context of tablet manufacturing, is an essential piece of equipment used to apply a thin layer of coating material to the surface of tablets. This process enhances the tablets' appearance, taste, and stability while controlling the release of active ingredients.
Key Features
Mechanism: The machine typically consists of a rotating drum or pan where tablets are placed. As the drum rotates, a coating solution is sprayed onto the tablets, allowing for even distribution.
Heating System: Heated air is introduced during the coating process to evaporate solvents quickly, ensuring that the coating dries rapidly and uniformly.
Versatile Coating Options: Coating machines can be used for various types of coatings, including sugar and film coatings, depending on the formulation and desired properties.
Baffles for Mixing: Internal baffles lift and tumble the tablets, promoting thorough mixing and ensuring all surfaces are exposed to the coating solution.
Automated Controls: Many modern machines feature automated systems for regulating temperature, airflow, and spray rates to optimize the coating process.
Working Process
Preparation: Tablets are loaded into the coating pan or drum.
Spraying: The coating solution is atomized and sprayed onto the rotating tablets.
Drying: Heated air is circulated to evaporate solvents from the coating.
Cooling: After achieving the desired coating thickness, the tablets are cooled to solidify the coating.
