Mechanical vibrators are devices that create vibrations through mechanical means, often using an electric motor or a rotating mass. They are commonly used in various industries, including construction and manufacturing, to compact materials, separate particles, or facilitate the flow of bulk materials. These devices come in different types, such as electromechanical vibrators and pneumatic vibrators, each designed for specific applications. Mechanical vibrators can improve efficiency and productivity by ensuring uniformity in processes like concrete pouring or material handling.