The core equipment of stone sand production line is sand making machine. If the particle size of sand and gravel raw materials is less than 50mm, the sand maker can be used directly, but the particle size of raw materials in stone factories is basically greater than 50mm, so a crusher is needed. If the shape of sand and gravel raw materials is large, it needs to be crushed by jaw crusher first, and then by cone crusher or impact crusher for the second time.

When selecting secondary crushing equipment, it can be selected according to the nature of the material. Cone crusher can be used for stones with high hardness, impact crusher can be used for stones with low hardness, or hammer crusher can be directly used to break stones into pebbles to make sand. If the shape of the stone is moderate, you can directly enter the secondary crushing sand making without using the primary crusher.

Which sand maker is better: 1. According to the demand of sand making market, there are VSI series, HVI series and HX series. The first two series have high crushing efficiency and large output, while the HX series has low output, simple equipment structure, small volume and convenient operation, installation and maintenance. These three series of sand making machines all have molding function, fine discharging granularity and good sales volume.

2. Cracking hammers are generally used in fine crusher and fine crusher, and are made of high wear-resistant materials, and the sieve plates are mostly alloy materials. Raw materials with certain viscosity and humidity can be processed, and the feed particle size can reach 190 mm, and the particle shape can be controlled. The lower grate has the function of vibrating screen, which can save investment cost and is convenient to use.

Third, the composite vertical impact crusher The composite vertical impact crusher can crush minerals below 140Mpa, making the particle size smaller and the sand production rate higher. When the particle size requirement is not strict and the feeding particle size is suitable, the composite vertical impact crusher can be used; When the requirements are strict, the composite vertical impact crusher and vibrating screen can be used in combination, and there are many kinds of composite vertical impact crusher, which can meet the production needs of many users.

Fourth, the wear cycle of the roller skin of the roller crusher is long, and the wearing parts are made of new wear-resistant materials, which can be used for sand making of high-hardness stones; The equipment performance is stable and reliable, and the unique structural design can reduce noise pollution and has environmental protection effect. The machine-made sand produced by roller crusher is cubic, with low needle content, fine sand particle size and high product quality.