Impact crusher is also called back break, mainly used in metallurgy, chemical industry, building materials, water and electricity and other materials processing, often need to move operations especially for highway, railway, water and electricity engineering, such as liquidity stone work, according to the type of processing raw material, the requirements of different size and finished…

With the rapid development of building industry, the sand has a big demand for building engineering. The river sand, as a local resource, can not reborn again at a short time with a phenomenon of decreasing of natural sand in the world even no natural sand existing in some area.