Plastic hot and cool mixer unit Application and features: 1. It is used in mixing drying, coloring and other industrial art, and also the idea equipment for producing profile, pipe 2. Main shaft gland bush obtained national monopoly. 3. Its heating method has slef-friction, eletric heating and steam heating modes 4. Two layers of sealing is adopted in the pot lid. Pot lid of cooling machine adopts arch lid, uneasy to be out of shape. 5. It has features of contact construction, good performance 6. They have passed the test of dynamic balance and static equilibrium.