Electric gourds are generally 0.5 tons to 30 tons. It consists of electric motors, transmission mechanisms and rolls or sprockets. It is divided into two types: steel wire rope electric gourd and ring chain electric gourd. The wire rope electric gourd is raised in one speed and double -speed improvement. Electric gourd is a small lifting tool driven by electric motors. It is often used in factories, docks, warehouses and other places for material handling and hanging operations. Its main characteristics include compact structure, light weight, high efficiency, and simple operation.