A screw conveyor is a highly efficient mechanical device used for transporting bulk materials horizontally, at an incline, or vertically. It consists of a helical screw blade, also known as a flighting, housed inside a tube or trough. As the screw rotates, it moves materials such as grains, powders, and industrial waste along the conveyor. Screw conveyors are widely used in industries like agriculture, food processing, construction, and mining due to their simplicity, durability, and ability to handle a variety of materials. They are customizable to meet specific application needs, making them a versatile solution for material handling.