In the construction of the construction industry development, commercial concrete, crushed stone accounted for more than 40-60%, the mechanism of sand accounted for 15%-20%, the remaining for the cementitious materials and reinforcing steel, so the sand making machine market is very broad. With the increase in the amount of stone, stone plant is also increasing, but with the increase in the number of stone plant, the competitive environment has arisen, some of the past good sales of crushed stone, nowadays the pressure of the price is not good enough to sell. The situation may be different in each region, many material plants 5-10mm meter stone sales are poor, the material plant tries to make them finer, made of mechanism sand, can enhance the price. There are also some crushed stone with high needle flake content is also not selling well, most of these crushed stone are processed by fine jaw crusher and cone crusher. These building rubble used in construction affects the performance of concrete, used to make sand can create higher value.

Building rubble into a mechanism of sand need to use sand making machine, impact crusher is the market using more sand making equipment, has the following advantages:

1, equipped with thin oil lubrication station, to protect the life of the bearings.

2、Hydraulic cover opening device, so that the internal parts of the crushing chamber is easy to overhaul and dismantle, saving time and labor.

3、Bearings are adopted to ensure smooth operation and low failure rate.

4、Setting over vibration alarm device, if the equipment occurs bad operation, can issue a warning, so that the equipment stops working, to achieve the purpose of protecting the machine.

5、The feeding and crushing structure of the crusher can easily realize the conversion of "stone hitting stone" and "stone hitting iron", which can be both crushed and shaped.

6. The dustproof sealing system of the crusher completely avoids external dust from entering the lubrication part.

7, optimized crushing chamber material impact angle design, so that the material and wearing parts of the friction less, extend the service life of wearing parts, the use of cost is greatly reduced.

The use of impact sand making machine can process rice stone, 13 stone, 24 stone, flake stone into mechanism sand, to meet the fineness modulus requirements of construction sand, particle grading requirements, can enhance the value of these crushed stone.