With the development of technology, broken machinery development so far, has made considerable progress. Especially in the 1990s, the rapid growth of broken machinery production and sales, adding broken machinery production companies continue to increase, so that broken machinery manufacturing enterprises up thousand homes, capable of producing 0.5 ~ 30t vibrating crusher, 4 ~ 24t static roller crusher and 16 ~ 30t tire crusher varieties more complete range of products pebble crusher, the basic form capable of self-development and production of complete crusher manufacturing system, the gap between the technology level and among the international advanced level is gradually narrowing. This rapid growth of the situation, there will be broken machinery parts industry into a new period of development. The first generation of Sand (also called rod mill Sand): It is a drum, the grinding, vertical drop, etc., to carry out sand, sand Sand ineffective, inefficient and only able to rock crushed into line with the size of the building Sand, was the first to develop a counter-Sand, Sand belong to the experimental stage. It features improved for hammer crusher, mainly for grinding grains, legumes crop residues and weeds materials. So it's basically been the stage of history Sand. Although the Sand at the factory has been running for 8 hours load time and space to adjust the various parts are normal, but in spite of such words in the Sand on-site installation should still conduct a comprehensive inspection. Check the oil pipe is connected mainly solid, add oil once again, checking each component connection, carefully check the impeller is caused by a foreign body, check the motor connections, the applied voltage is normal. Before installing the belt to move the new Sand, Sand confirm signs consistent with the direction of rotation of the direction of rotation in the opposite direction is prohibited. After confirmation, in pre-production is first empty load and load test machine, no problem and then confirmed the actual production. Empty load operation takes 4 hours and then to load operation, the load operation time takes more than 8 hours time. Sand | Yuxin Senda (certified) | Altay Sand provided by Henan new Senda Heavy Machinery Co., Ltd.. Henan new Senda Heavy Machinery Co., Ltd. (www.hnsdzg.com) is a leader in Zhengzhou, crushing grinding equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs . Yuxin Senda in leadership with the staff warmly welcome all inquiries negotiations to create Yuxin Senda a better future.