Research and development of casting material price for solar panel automatic dust removal system. The system is a special equipment for dust removal and cleaning of solar panels, which belongs to high-end equipment of science and technology. It can wipe the dust on the surface of the panel through the automatic induction components, so that the panel make full use of light energy conversion is not hindered, thus prolongs the life of the battery, the estimated output value is increased to 6-8 million. Since its inception, our product sales have increased from 30 units in 2009 to 60 units in 2010, and then to 100 units in October 2011. Our products, sand casting factory technology leading the industry level, favored by customers, sales doubled every year. With the doubling of the sales volume, the quality problem of the product is gradually exposed. In particular, there is a patent certificate of the opposite fiber cleaning machine, although our opposite fiber cleaning machine has been in the leading position in the same industry technology, but the cleaning effect has been about 70%, some foreign bodies are still stuck in the cotton, it is difficult to clean. We hope that relevant experts can help enterprises overcome this technical difficulty.