The Asphalt Mixing Plant with the production capacity from 40t/h to 400t/h is the ideal equipment for construction and maintenance of high-ways. Its main parts adopt well-known brands components. The mixer has a fast speed and short mixing time. The rated working cycle is 45s. The filling rate is no more than 60% making asphalt, aggregate and powder well stirred. Its mixing plate and blade use wear-resistant ally cast iron and its mixing shaft adopts ally cast steel. The measuring device use OMRON weighing module which equipped with high precision and reliability resistance type strain sensors. It can adapt to any environment. In addition, the aggregate, powder and asphalt are measured separately to guarantee the precision and accuracy. The dust collecting system adopts the combination of gravity dust collection and water dust collection or the combination of gravity dust collection and bag dust collection. Dust emission is less than 50 mg/Nm3 with no pollution to the environment.