Spring Cone Crusher is suitable to crush various kinds of ores and rocks of medium or above medium. Compared with 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 without damaging 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 ensure reliable performance. The type of crushing chamber depends upon size of feeding and fineness of crushed products. The standard type (PYB) is applied to medium crushing, the medium type is applied to fine crushing and the short head type is applied to fine crushing.