Horizontal mixer is working under the force of inner & outer screw ribbon blades, flip materials inside the round tank. The inner ribbon screw blade push materials from the middle to the both sides. The outer ribbon screw blade push materials from both sides to the center. Materials are pushed,mixed back and forth under the force of ribbon screw blades, then move straight,change directions, so as to form a convective circulation. Because of the above mentioned mixing and agitation, materials can be mixed evenly in a short time. Use the special sealing at both ends. No powder and liquid will be leakage. The consumption of sealing is low cost , easy to replace . Therefore , ribbon screw mixer is widely application and high mixing effects equipment.