This machine is a new equipment improved on the basis of the original CH series trough mixer. It is widely used in mixing powdery or wet, lake-like materials, so that different proportions of main and auxiliary materials are evenly mixed. Stainless steel system, the gap between the paddle and the barrel is small and there is no dead angle. The two ends of the mixing shaft are provided with sealing devices to prevent material leakage. It is widely used in pharmaceutical, chemical, food and other industries.