Sand is an important composition in concrete and in account of one third. As the rapid development of construction industry, the demand for sand is increasingly growing. However, as a kind of local resource, sand is non-renewable in a short time. In most areas in China, the sand resource is decreasing year by year. Even worse, some area is lack of natural sand, especially for the concrete demand. Nowadays, the sand price is higher and higher, which without question influences the construction development. 

At present, artificial sand is more likely taken as replacement of natural sand, which is also called manufactured sand. Artificial sand is produced by crushing and separating. The way that we make use of ore powder reasonable and adjusting sand ratio in concrete can make good quality of concrete. If allocate sand the right way, the artificial sand making concrete is of high density, impervious and pasty resistant.  And the artificial sand is completely up to the design requirements because of the physical features and long usetime advantage. Besides, artificial sand is specially fit for allocating high strength level concrete, high performance concrete and pumping concrete. 

A new generation sand maker produced by Red Star mining machinery company is advanced over the international techinic level. Expect from the  competitive price, the new sand maker has unique charactoristics among same kinds of products. As the long term technology experience and modern processing skills guarantee the VSI serise new type sand maker get ahead of machine industry. VSI serise high efficiency vertical impact crusher is the biggest achievement that the design combines Germany experts and Chinese work situation, and at present the Red Star company is the solo manufacturer  of international advanced sand maker in China. VSI sand making machine is applied to express way, high speed railway, hgih building, governmental buidling, water and powder dike construction and concrete making and so on, which is without question the first choice for artificial sand making and stone  building fields. 

Presently, crushing technology in China has been developed to a certain advanced level and is able to satisfy the development of building industry and foundamental construction. However, customers should watch out for puchasing false products. It will be a huge loss if customer bought a brandnew used machine. Because the high production cost decides each product price, some machines are extreamly expensive. On the one hand, the cost is relatively higher than common products. On the other hand, there are also some manufacturers raise the price on purpose. Therefore, when purchasing a good quality machine, customers will often come aross a lot of difficulties. While, what makes customers glad is that domestic stone crushing lines are planing to reduce the production cost to gain low profits salesment.

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