This intensive mixer has a wide range of applications, including in mixing and refining raw materials, such as raw rubber, synthetic rubber, resin, asphalt, celluiese, PE, PP, PVC or EVA into even mixed stock. The body and structure of this machine are strong and durable, making it suitable for heavy-duty mixing and refining operations. Dust stop device has been specially designed to effectively prevent leakage of raw materials and other ingredients. Long product life, simple operation, good results, easy maintenance, convenient replacing of worn-out parts, ideal mixing equipment for heavy duty usage. Two types of discharge door included: the drop door type and the slide door type. This model is the drop door type.