The motor of the spring cone crusher drives the large conical gear at the bottom of the eccentric sleeve through a hydraulic coupling and a small conical gear, causing the eccentric sleeve to rotate, causing the cone to swing and break the material. The main shaft of the crusher is stationary, only supporting the spherical tile and bearing the crushing force. Due to the fixed spindle of the crusher and the transmission of crushing force by the eccentric sleeve, this structure can withstand a large crushing force and is very suitable for fine and ultra-fine crushing, as the crushing force of ultra-fine crushing is very large. It is expected that the particle size of its product (for ultra fine lining boards) can reach 50 ^ 80% (depending on the nature of the material) when it is opened at a rate of one 5m ². This crusher is suitable for the third or fourth stage crushing of metal mine beneficiation plants; Suitable for building materials, non-metallic mines, and civil engineering. Especially in areas where the supply of natural sand required for civil engineering is insufficient. The hydraulic cone crusher works by rotating the electric motor to drive the pulley or coupling, transmission shaft, and cone part to make the eccentric shaft undergo periodic swing motion below the axis. After the material enters the crushing chamber from the material inlet, it undergoes crushing due to the mutual impact, compression, grinding, and rubbing of the eccentric shaft and the rolling mortar wall. The hydraulic safety system can eliminate faulty objects from the support sleeve and the top of the fixed cone by creaking when the machine experiences iron faults or stuffiness, playing a good safety role while greatly reducing maintenance rates and improving production efficiency.