Adopting the new domestic technique and production process, the milling machine is composed of coarse crushing device, fine crushing device and fans. The machine body with two layes adopts water cooling and a new material for sound-proof and heat emission in the inner chamber, so the machine works in low noise and non-libration. With the features of fine appearance, durable performance, and high output that is 50% higher than traditional one,this kind of milling machine is the leading breaking plant in china at present.