The stone hit stone type machine is suitable for processing the abrasive materials. While the stone hit iron type machine is suitable for processing the weak corrosive materials. But the sand rate of this machine is 10% – 20% higher than the stone hit stone type machine. As the famous mining enterprise in mining market, Henan Daswell has research the mobile crushing and screening technology for many years. After years research and innovation, we have matured the core technology of mobile crushing and screening equipment. As the research result, we have researched many kinds of crushing and screening equipment, such as: jaw mobile crushing and screening equipment, impact mobile crushing and screening equipment, cone mobile crushing and screening equipment and other kinds of crushing and screening equipment. All those machines have received the good reputation in domestic mining market. In the era of low carbon economy, energy conservation and emission reduction portable crusher, low carbon and environmental protection are the key to improve the enterprise competitiveness. Then impact crusher became the model of green and energy saving. In order to meet the changeable demand of the customer, Henan Daswell devotes itself to the development of impact crusher:Henan Daswell Machinery Co., Ltd,is a professional manufacturer and trader specializing in the research, development and production of construction machinery for nearly 30 years. Our main products are as follows:roller mills,pulverizer,We will provide you with the best product and service. 1. We are researching the new wear-resistant material to prolong the service life of hammer plant and improve the production efficiency. 2. The adoption of modern mechanical and electrical integration technology and control methods has continuously improved the automatic level of impact crusher. This change has greatly reduced the labor strength. 3. We need to improve the structure of existing impact crusher. Then the...