cone crusher is used in metallurgy, chemical industry, building materials, hydroelectric, road construction and other industrial sectors of different hardness of various ores or rocks for medium and fine crushing, which is characterized by advanced structure, smooth operation, high production efficiency, convenient adjustment and good granularity uniformity. nhi is the company drafted the design standard of cone crusher with a history of more than 50 years for designing and manufacturing cone crushers. the produced cone crusher includes four series with hundreds of specifications as pyt (spring cone crusher), pyy (hydraulic cone crusher), pys (symons cone crusher), pyg (high energy cone crusher).at present, the largest jaw crusher designed and manufactured by our company is pys-bc 2016 with output of 1252-1941t/h.