Sand stone are all non-renewable natural resources,and natural sand can not continuously excavate.Due to the limit of exploiting river sand, many people use limestone, granite,river pebbles to make sand all over china, so “artificial Sand "came into being,and develop very fast. Sand is broken by the mechanical crushing and screening, then made small particle size which is less than 4.75 mm.

< 2.5 mm is called extra fine sand

2.5-3.5 mm called fine sand

3.5-5 mm called medium sand

>5 mm or more called coarse sand or coarse aggregate, namely stones.

Concrete is the main structural material of construction, widely used in highway, railway, construction, water and electricity projects. Besides sand and stone are the most important materials of making concrete materials, are a skeleton of concrete, so sand and stone known as the concrete "aggregate" with 0-4.75 mm particle size . The quality of sand and stone is directly related to the merits of concrete quality and the safety of engineering construction.

Our company Baichy Machinery provided sand production line is widely used in limestone, granite, basalt, gneiss, river gravel, pebbles and other rock to make sand. Sand production line is designed with high degree of automation, high crushing ratio, low operating costs,energy-saving, and less pollution. The sand produced totally meet the national standard of construction sand with uniform particle size, good grain shape and reasonable grading. The main equipment of the production line is designed according to specifications of the sand, the capacity and the application of sand from customers.

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