The kneader is an ideal equipment for kneading, mixing, vulcanizing, and polymerizing high-viscosity, elastic-plastic materials. The kneader can be used to produce silicone rubber, sealant, hot melt adhesive, food gum base, pharmaceutical preparations, etc. The kneader is a special mixing and stirring equipment. It uses two Σ blades and a side-by-side tangent differential arrangement, that is, one stirring blade is fast, and the other is slow to generate shear force. Different paddle speeds enable rapid shearing of the mixed materials, so that the materials can be mixed evenly.