Sand Introduction: With the continuous development of national infrastructure construction, the depletion of old-fashioned mechanical Sand natural sand resources have been behind the production needs, need for a new and efficient Sand on the market to meet the growing tension sand and gravel supply. In this background our research staff after years of research, reference works abroad crushing machine and usage based on user feedback, combined with its advantages, with the joint efforts of the National Institute of Machinery and expert design and development of a new type of first three generations of dual-purpose machine gravel (sand machine). Its overall performance is superior to the crusher, rod mill crusher, impact crusher straight and soft cone crusher and hammer crusher. The device is suitable mechanism of artificial sand, Sunaba, highway, rail, water, construction, cement, refractories, metallurgy, glass, sand and other industries, is the production of high-quality sand device of choice. Waterfall falling into the material feed size is larger than when the second impeller feed size, they need to feed from two feed ports respectively. Ore hopper into the river gravel crusher, respectively, through the sub-feeder feeding tube into the center of the impeller, when the materials into high-speed rotation of the impeller Sand manufacturers in the impeller being rapidly accelerated up to several times its acceleration as well as a large number of times the acceleration due to gravity sand making factory, and then at a rate per 70-100m / s from the impeller projectile out, first with the free-fall into the whirl crushing cavity material impact outside the impeller and broken, and together impact to whirl crushing cavity material on the bed, on top is sprint onto the bed material rebound oblique whirl crushing chamber, but also to change its direction of motion, deflected downward movement, rotation Road materials emitted from the leaves to form a continuous Small Sand curtain material manufacturers, so the material in a turbine as well as the crushing cavity by two times the impact crushing effect. Throughout the crushing process, the material is self-reciprocal impact crusher, not in direct contact with the metal element. Since the channel from the impeller material emitted obliquely peripheral impact, forming materials in eddy crushing cavity rotational movement on the bed material, an eddy moving the grinding action between the material, due to the impact of friction between the pulverized material, crushed material discharged from the discharge port. Henan Senda Heavy Sand river gravel production with high performance stability, reasonable structure vsi crusher manufacturers, high degree of automation, the entire production line in addition to equipment and routine maintenance of the boot down, the process is simple, almost no advantages such as manual operation, it is important to its high efficiency, low operating cost, high yield, high-yield, finished stones uniform size, grain shape is good, in line with the national high-speed material requirements. Sand manufacturers, Yuxin Senda (certified), Chizhou Sand manufacturers 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.