The development history of impact crusher can be traced back to 1850s. From the birth of the world first jaw crusher, it had been a long past. With the development of productive forces, the jaw crusher can’t fully satisfy the need of crushing technology. Then, it designed the impact crusher based on jaw crusher.
In 1924, the Germans first developed two types of impact crusher: single rotor and double rotor. The crushing machine structure is similar to the modern squirrel-cage type crusher. Because no matter from the structure, or from the principle of work to analyze, it had the characteristics of impact crusher. Because the material need repeated impact, crushing process can be free to stop discharging. But due to the feeding intensity and impact crusher capacity constraints, the model gradually transformed into squirrel cage crusher.
By 1942, the German Andreson invented the AP series impact crusher which is similar to the modern impact crusher structure. It was based on the structural characteristics and working principle of squirrel cage crusher. Andreson did lots of research and summary. Thanks to the impact crusher's production efficiency is relatively high, it could handle the larger material. It is relatively simple in the form of the structure, and easy to repair, so this kind of impact crusher had been developed rapidly.
Impact crusher of Spain Rover company has a very wide range. From coarse crusher to sand crusher, it is a total of eight series, and nearly a hundred kinds of specifications. Its structure is unique. According to the company's experts introduction, this impact crusher’s hammer blow plate service life is up to 3 to 6 months.In addition, the recent German Hazemag&EPR company developed a new HazemagSQ type rotor for its impact crusher. The rotor is opened, and the fixed plate is embedded in the groove. The impact plate can be inserted from the upper side or a fixed plate, and uses the wedge to fix. The impact plate combines the advantages of S type and Q type blow impact plate, and it can be switched to use, improving the utilization rate.
Until the late eighty's, China introduced the KHD type hard rock crusher, to fill the domestic blank. But it was behind abroad for more than 20 years. At the beginning, the core parts of homebred hard rock crusher were dependence on imports. The domestic plate hammer was a ministerial level scientific research projects in "eight five" period. The success of the project, the domestic plate hammer not only replaced imported, and has been exported to Europe and the United States, Japan and other countries.