Although the impact crusher appeared relatively late, it has developed rapidly. At present, it has been widely used in various industries such as cement, building materials, coal and chemical, and mineral processing for fine crushing operations of ores, and can also be used as coarse crushing equipment for ores. The reason why the impact crusher has developed so rapidly is mainly because it has the following important characteristics:

1. The fragmentation ratio is very large. The maximum crushing ratio of a general crusher is not more than 10, while the crushing ratio of an impact crusher is generally 30-40, with a maximum of 150. Therefore, the current three-stage crushing process, such as using one or two impact crushers, can be completed, greatly simplifying the production process and saving investment costs.

2. High crushing efficiency and low energy consumption. Because the impact strength of general ore is much lower than its compressive strength, and due to the high-speed action and multiple impacts of the impact plate, the ore is first fractured along the joint interface and fragile tissue. Therefore, this type of crusher has high crushing efficiency and low energy consumption.

3. The product has uniform particle size and less over crushing phenomenon. This type of crusher uses kinetic energy to crush ores, and the kinetic energy of each ore is proportional to its mass. Therefore, during the crushing process, large pieces of ore are subject to significant crushing, but smaller particles of ore are not crushed under certain conditions, resulting in uniform particle size of the crushed product and less over crushing phenomenon.

4. It can be selectively broken. During the impact crushing process, useful minerals and gangue first rupture along the joints to utilize useful minerals for monomer separation, especially for coarse-grained embedded useful minerals, which is more significant.

5. Great adaptability. The impact crusher can crush brittle, fibrous, and medium hardness ores, especially suitable for crushing brittle ores such as limestone. Therefore, the use of impact crushers in the cement and chemical industries is very suitable.

6. The device has small size, light weight, simple structure, easy manufacturing, and convenient maintenance.

Based on the obvious advantages mentioned above, the impact crusher is widely adopted and vigorously developed in various countries and fields. However, the main disadvantage of the impact crusher is that when crushing hard ores, the plate hammer (striking plate) and impact plate wear is relatively large. In addition, the impact crusher is a machine that rotates at high speed and relies on impact to crush ores. The precision requirements for parts processing are high, and static and dynamic balancing must be carried out to extend the service life.