Trace crusher origin, appears the earliest prototype crusher is in the fourth century A.D. or so. But modern crusher Americans E.W.B lack in 1858 the design and manufacture. The structure form of double toggle plate jaw crusher. Jaw crusher can be used for coarse crushing work, can also be used to fine operation. Especially used in underground crushing assignments and medium and small mobile crushing plant. With the development of Chinese crushing technology, the crusher technology has surpass the foreign technology, and according to Chinese customers the reasonable improvement.Hard rock crushing hongxing should choose comparative wear resistance of the crusher equipment, so as to achieve lasting use, like the cobble such high hardness material is can not use hammer broken to processing, typically use the jaw crusher for coarse crushing, of course if the cobble raw material smaller, it will not have to use a break, can be directly choose hard rock special crusher cone crusher, cone crusher we all know that the use of the working principle and the advanced crushing technology, especially Hongxing heavy industry production symons cone crusher and other than type, WKS series cone broken broken arm length, stroke, crushing force, for the crushing cavity of the materials are more effective in broken, each stroke broken material more, now have been many cobble system sand factory application of choose and buy, and in the iron ore and other industries is also widely used. Hongxing industry launched WKS simons cone crusher after market close analysis, , the cone break and PY series spring cone crusher compared: has the structure to be reliable, the production efficiency is high, the adjustment is convenient, the use of economic etc. The crushing cavity type: is divided into three different design methods, the user can choose according to the site condition crushing efficiency is high.crusher equipment: http://www.hxjqmining.com/pro/jaw_crusher.html