A twin-screw is a type of mechanical device commonly used in various applications, including extruders and pumps. It consists of two intermeshing screws that rotate in the same direction, allowing for efficient mixing, conveying, and processing of materials. This design enhances the flow and reduces the risk of material degradation. In the context of extrusion, twin-screw systems are particularly effective for processing polymers and food products. The synchronized movement of the screws creates a uniform shear force, which helps to blend ingredients thoroughly. This technology is widely utilized in industries such as plastics, food, and pharmaceuticals.