Coaters, also known as coating pans, are equipment used in the pharmaceutical, food, and chemical industries for the application of coatings onto solid materials. These machines are commonly used in the production of tablets, confectionery products, and other coated particles. The main purpose of coaters is to provide a uniform and controlled coating onto the surface of the material being processed. The coating can serve various purposes, such as improving the appearance, taste, or texture of the product, protecting it from moisture or light, or controlling the release of active ingredients in pharmaceutical tablets. Coaters consist of a rotating pan or drum, which is typically made of stainless steel, and a spray system for the application of the coating solution. The material to be coated is placed inside the pan, and the coating solution is sprayed onto it while the pan rotates. The rotation of the pan ensures that the coating solution is evenly distributed over the material, resulting in a uniform coating. The spray system in coaters is designed to provide precise control over the spraying process. It typically includes nozzles or atomizers that generate a fine mist of the coating solution, ensuring an even distribution and minimizing wastage. The spray system can be adjusted to control the flow rate, spray angle, and droplet size, allowing for customization of the coating process according to the specific requirements of the product. Coaters may also include additional features, such as air handling systems for drying the coated material, exhaust systems for removing excess coating solution, and temperature control systems for maintaining optimal conditions during the coating process. In conclusion, coaters or coating pans are essential equipment used in various industries for the application of coatings onto solid materials. They provide a controlled and uniform coating, enhancing the quality and functionality of the final product.