Shunky Cone Crusher's high efficiency befits from its unique working principles and complete insurance device. When the machine works, the rotation of motor deliver the power onto the movable vertebrae through pulley, coupler and transmission shaft and then the movable vertebrae rotates. Then sometimes the crushing wall of Cone Crusher goes near the rolling a mortar wall and sometime it goes away. While ores suffer continuous impact, crack and curve and finally are crushed.

The connection position of supporting sheath and frame is tightened by the spring. When some materials which can't be crushed fall into Cone Crusher, the spring is compressed and can change its shape in time so that the machine can discharge impurities and realize its insurance function, avoiding the machine's damage. When impurities are in the crushing cavity or when the machine is overload, Cone Crusher's spring insurance device will operate and then the size of discharging hole become large and the impurities will be discharged. If these impurities are still blocked in the discharging hole, we can use the cleaning cavity system to widen the discharge and realize our aim. With the help of spring, the size of discharging hole will recover automatically and the machine goes on natural work. Besides, there are high manganese steel toggle plate laid on the surface of Cone Crusher's crushing cavity, and the size of discharging can be adjusted by two methods—hydraulic way or manual way.