Impact Crusher History
Crusher , history can be traced back to the 1850s , from the birth of the first jaw crusher in the world has gone a long time. With the development of the productive forces, jaw crusher has been unable to fully meet the needs of crushing technology , so , on the basis of the jaw crusher , people devised Crusher
In 1924, the Germans developed the first single , two types of dual-rotor crusher , crusher structure similar to when modern squirrel cage crusher, because in terms of the structure, or the analysis from the working principle it has the characteristics of both the crusher . Because the material requires repeated shocks, crushing process can be free and unimpeded discharge , but due to the strength and the ability to feed the crusher restrictions gradually transformed their models for squirrel cage crusher
To 1942 , German Andreson summarized the structural characteristics of the squirrel cage crusher and hammer crusher working principle , based on the invention of modern counterattack crusher structure similar to the AP series impact crusher . Thanks to the production efficiency of this crusher is relatively high , the material can be handled relatively large , and it is in the form of relatively simple structure, easy maintenance , so this crusher has been developing rapidly . With the further development of the theory of crushing and screening crushing increasingly sophisticated and technology, a wide range of high-performance crusher is also emerging, foreign production crusher manufacturers more well-known that the United States Cedar ids (former Iowa Machine company ) , Sweden Svedala, Finland Nordbe pen , France and Spain Rover Dragon , Germany Hazemag, KHD, heart upp company , Kawasaki Heavy Industries , and so on . With the continuous development of international science and technology, large-scale crushing and screening equipment has been developed very well , listed as Shanghai Sanme Mining Machinery is a leading Chinese manufacturer of crushing and screening equipment , a German company Abkhazia Mark 's joint venture in China . Mountain beauty with modern processing and manufacturing capacity and the excellent R & D team composed of engineers , the company since its inception has always insisted on new products, new technologies developed vigorously , so that the development of products with international advanced level , able to provide customers a full range of crushing screening equipment and complete solutions , products include jaw crusher , cone crusher, impact crusher , vertical shaft impact crusher ( sand making machine ) , vibrating screen, sand recovery , wheeled and tracked mobile crushing station mobile crushing station
Crusher has a very broad range , from crushing crusher to sand crusher , a total of eight series , nearly 100 kinds of specifications. The structure has a unique feature. According to the company experts: in pieces with hard rock crusher , hammer blow life of up to 3 to 6 months. In addition , Germany Hazemag & EPR for its crusher developed a new HazemagSQ rotor . The rotor type is opened , the rear fixing plate embedded in the groove. Pads can be inserted from the side or the fixed side panel
Meanwhile, in order to enhance the mobility of the crusher has also developed a tire and crawler type mobile crushing station , which wheeled type crusher more popular in America, tracked more popular in Europe. In fact, the development of crusher in China relatively late to the 50s of last century, China really has a crusher, so that our crushing and screening equipment , mostly 50s came out. Before the 1980s , we have made limited impact crusher coal and limestone handling classes in hard materials
China has introduced until the late eighties hard rock KHD type crusher , fill the gaps , but behind twenty years abroad . Domestic hard rock crusher , the beginning of its dependence on imported core parts board hammer , hammer localization in "Eighth Five -Year" period as a ministerial-level scientific research projects , after the success of the project , not only domestically hammer replace imports , and has exported to Europe, Japan and other countries. Breakthrough wear-resistant materials , so hard rock crusher menace. For example : Ministry of Transportation in order to improve the quality of highway construction , concrete pavement research projects have raised stone crushing plant , and included in the national "Eighth Five " project . Trial equipment failure in the northeast of the project to a site in use. The user to switch to hard rock crusher counterattack after production of stone, in full compliance with the requirements of concrete highway pavement skid . So hard rock crusher reputation has been boosted . Shanghai Shan Kai once owned such a device , as a prerequisite for the tender to undertake road construction . According to statistics, in road construction in the provinces and cities have adopted hard rock crusher equipment as a prepared stone pavement to breaking strength of 300MPa basalt , andesite and other hard materials , and meet the following gradation 19.6mm stone . Its flakiness percentage content of less than 10%
The country 's economic development must be to promote the rise of some of the infrastructure, the infrastructure construction in China has entered a boom , so in this context , it is bound to promote the progress of mining machinery market. With gravel industry, for example , because such projects like railways , requires a lot of mechanism sand, concrete aggregate in the development process . And in the future , whether it is road or construction of gravel aggregate ( or concrete aggregate ) all have higher requirements, and requires its grain type , quality is more and more stringent. Why is back-breaking equipment help complete construction sand and gravel industry needs ? Based on strict requirements of building sand , but also in order to develop a broader market , Yifan machinery manufacturing a new type of HCP, HCS efficient crusher , in full hardcover sand and gravel production line for advanced crushing, with the normal operation of the entire production line . In this case the appearance of the new impact crusher , the crusher is entirely meet the market demand for high device efficiency .
Shanghai Ding Man Industrial Co., Ltd. is committed to technological improvements crusher , ease of customer operations, improve the service system and strong technical support , crusher , definitely bring you unexpected benefits.
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