GPY High Efficiency Hydraulic Cone Crusher is a laminating single-cylinder cone crusher which has been optimized designed and manufactured by both internal and external advanced technology of hydraulic cone crusher under practical condition of China. The design theory it employed combines with optimized crushing chamber, lamination and high performance. Therefore it has the features of light weight, competitive throughput, automatization, easy operation and maintenance, normative product granularity, low cost of wearing parts and so on. It is the substituted product for spring cone crusher and universal hydraulic cone crusher. This machine can be widely used in medium or fine crushing various ores and rocks in the sectors such as metallurgy, chemical industry, refractory materials, hydroelectricity, construction, highways and so on, especially suitable for synthetical recycling, processing and reusing of various metallurgy dregs in steel slag treatment plant.