Most of the ore blocks mined in the mine are large and hard. They must be broken by professional mining machinery and equipment to obtain small particle ore, which can be used as building sand and stone. With its unique structural design, cone crusher can carry out medium and fine crushing of ore. It is widely used because of its large crushing ratio, convenient operation and maintenance, large production output and high efficiency. In addition, if the cone crusher is used to replace the fine crushing jaw crusher for secondary crushing, the particle size of the finished product can be very small. How can we choose high-quality cone crusher?