In recent years, China's rapid economic development, the government has also increased attention to the machinery industry, under the impetus of the policy of stimulating domestic demand, especially in mining machinery, in recent years, sand and stone metallurgy and other industries have expanded the scale of production, and its demand for artificial sand is increasing.

As we all know, the sand machine industry has a good development trend and has become a traditional and new entrepreneurial field. The sand making machine is mainly the equipment for crushing ore and minerals and crushing them to make sand grains.

VSI-IV sand machine is widely used, its performance has reached the international leading level, is currently more effective, practical and reliable crushed stone machine, especially suitable for the production of abrasives, refractory materials, cement, quartz sand, steel sand, slag powder, copper ore, iron ore, gold ore sand, concrete aggregate, asphalt aggregate and other hard, brittle materials of fine crushing and crushing, is an efficient, energy-saving crushed stone sand machinery and equipment, 50% energy saving than the traditional sand machine, is currently the world's highest artificial sand machinery and equipment. VSI-IV sand making machine has the characteristics of good system integration innovation, high degree of mechanical, electrical and hydraulic integration, high productivity, reliable performance, stable operation, clean and environmental protection, etc. The research has initially established the artificial sand and gravel crushing and screening process database; Developed fine particle vibration sand making machine and ultra-fine hydraulic rotary cone crusher; The use of multi-stage vibrating screening process sinks the sea to solve the problem of fine particle grade material classification and dewatering; The first hydraulic grader of sand and gravel cleaning system with multi-point flushing, collection, sludge fine sand separation, water recycling and other functional characteristics, can produce high-quality pure sand and stone, saving water resources; The flexible and adjustable electric pusher dispensing device is adopted, which can meet the needs of different gradings; The PLC control system provides two control modes, centralized and decentralized, which ensures system controllability and reliability, and improves the degree of automation. The results of high technology, excellent performance, safe and reliable work, energy saving and environmental protection, its comprehensive performance has reached the high level of the international similar system, with significant economic and social benefits.