Screening machines can be divided into stationary screening machines and movable screening machines, the movable screening machines can be further divided into rotating screening machines and vibrating screening machines. Vibrating screening machines are widely used in coal, steel, mining, road construction, machinery, construction and other industries, the demand in metallurgy and coal industry accounts for about 75% of the total market capacity.
According to the data analysis of China Heavy Machinery Association, in 2008, Chinas market capacity of vibrating screening machine was CNY 5.762 billion; in 2009, this number reached CNY 7.033 billion; in 2010 was CNY 8.164 billion and the number became CNY 9.23 billion in 2011, the market capacity growth stably.
After years of development, currently, there are several hundred vibrating screen production enterprises in China, mainly distributed in Henan, Liaoning, Shandong, Hebei, Jiangsu, Anhui, Shanghai and other provinces and cities, of which, Xinxiang in Henan and Anshan in Liaoning has formed industrial clusters of vibrating screening equipments.
However, there are less than ten enterprises own the ability and technological innovation to produce large-scale vibrating screening machines, most of the enterprises are small-scale manufactures with relatively weak R&D capability; the concentration grade of the entire vibrating screening machine industry is low.
Chinas mining and metallurgical industry mainly use high-end vibrating screen products. Take coal industry as an example: the coal itself contains water and mud, the size and shape are very uneven; this is not conducive to the screening. The high quality vibrating screen equipments of coal washing and selecting industry require high performance and high processing level, the process is extremely difficult. In particular, the production of the vibrating screens which with the drying surface greater than three meters in width is more difficult.
At present, in the field of high-end vibrating screen, the representatives of the domestic enterprises are Anshan Heavy Mining Machinery Co., Ltd, its typical products are high-end vibrating screens for coal, steel and mining use; and Xinxiang Weimeng Metallurgical Equipment Co., Ltd, and its representative products are the vibrating screens for metallurgy use.
With the brand advantages and strong financial power, the foreign vibrating screen manufacturers occupy the leadership position in Chinas mining use metallurgy vibrating screen field. Such as German Schenck ranked in the first place in Chinas mining use high-end vibrating industry; the products of Aury Company occupy an important position in Chinas high-end coal vibrating screen field.