A drum sieve, also known as a rotary sieve or drum screen, is a mechanical device used in various industries, including agriculture, mining, and wastewater treatment. It consists of a cylindrical drum with perforated or meshed walls. The drum is placed at an angle and rotated, allowing materials to be fed into one end.As the drum rotates, materials are separated based on size. Smaller particles or fines pass through the holes in the drum’s surface, while larger particles are retained inside. Drum sieves are commonly employed for tasks such as grading, separating, and classifying bulk materials like grains, sand, or compost. They play a crucial role in ensuring that materials meet desired size specifications, making them valuable tools in a wide range of industrial processes.