From this page, you can get the jaw crusher, cone crusher is of stable structure, high efficiency, easy adjustment, economic operation, etc. The spring safety system of crusher acts as an overloading protection system that allows metal to pass through the crushing chamber so as not to damage the cone crusher. The safety system uses dry oil ａnd water as two kinds of sealed formation to make plaster powder ａnd engine oil separate to make sure reliable performance. The type of crushing chamber depends upon size of feeding ａnd fineness of crushed product. The standard type （PYB） is applied to medium crushing, the medium type is applied to medium or fine crushing ａnd the short head type is applied to fine crushing.