A dual-stage dryer is an essential equipment used in industries such as pharmaceuticals, food processing, and chemicals for removing moisture from materials like powders and pellets. It works in two stages: the first stage uses hot air or gas for initial drying, while the second stage uses cooler air or gas to further reduce moisture and improve product quality. This drying method is ideal for heat-sensitive materials, enhancing efficiency and reducing energy consumption. Dual-stage dryers also offer better control over drying parameters, resulting in faster drying times and lower operating costs, making them versatile and cost-effective for various applications.