Drum mixer production line integrates many functions. The belt conveyor is responsible for the horizontal conveying of materials, with large carrying capacity and stable operation. The roller mixer can mix materials efficiently and ensure uniformity by virtue of its unique mixing structure. The storage silo stores materials and provides buffer for production, while the Z-conveyor enables vertical lifting of materials and saves space. Each part operates in concert and can also be matched with packaging machine to achieve automatic packaging of materials, which is widely used in food, chemical and other industries, greatly improving production efficiency.