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There are two basic processes during the beneficiation process. One is dissociation which means to use crusher machine or ball mill series to make the block to be crushed or grinded then to separate and take out the useful particle from the ore; Two is separation which means to divide the different product according to the physics and chemical character from the ore particle which has been dissociated. Because mostly the useful ore is living with the gangue together tightly,and appear fine particle inbuilt state. If do not separate the different ore or element first,even there is a big difference between them,there will be no way to make the separation. So to separate the ore and gangue first which is the base what you have to do. About crushing machine and grinding machine’s purpose which is in order to dissociate the useful mineral and gangue from the ore.

Mining machinery mainly constitute by a various of mineral processing equipment, such as crusher machine, sand making machine, ball mill and so on. They are in promoting social and economic development; technological progress and continuous development of society have played a very important role; occupy an important position in the social economy and in the composition of national economic construction are the pillar industries. The technological level of mining machinery, the level of equipment ability is one important symbol that to measure a country’s industrial strength.
Mining machinery mainly serves the energy, transportation, raw material and other basic industry. The main task is for the coal, steel, nonferrous metals, chemicals, building materials and the nuclear industry of mining and processing of raw materials, as well as high speed rail, high road, hydroelectric and other major projects to provide advanced and efficient technology equipment. Mining machinery in machinery industry with a wide variety of equipment, complex structure, large scale, great demand and widely used of machinery industry. Mining machinery according to their use can be divided into mining equipment, lifting equipment, transport equipment, crushing equipment, grinding equipment, screening equipment, sand washing machine, ore washing machine etc. Small class can be divided into many types, such as the crushing equipment can be divided into jaw crusher, impact crusher, sand making machine, metal crusher, mobile crusher, double roll crusher, hammer crusher, cone crusher, fine crusher and so on.
Mining machinery manufacturing industry is the basis of supporting countries to establish an independent industrial system, but also is an important symbol that to measure a country’s comprehensive strength.

The role of stone crusher is crushing the large size of the stone into different sizes of small gravel, after meet the requirements applied to the project. Highway for the quality requirements of stone is more stringent.
Jaw crusher is mainly consist of the fixed jaw plate and the activities of the jaw plates, the working principle is activities of the jaw plate on the fixed jaw plate for periodic reciprocating motion, the stone was crushed by the two jaws. They can crusher the stone that with great hardness and large size, but the discharging-material size is large. Generally used as a stone of coarse crushing. 
Hammer crusher mainly consist of hanging hammer and rotary table, the working principle is the hammer that freely hanging on a turntable driven by rapid rotation of the turntable rotation, the stone was hit by the rotation of the hammer and crushed. It is suitable for crushing the hard stone, which is characterized by low machinery cost, high production efficiency. But after crushed the high content of gravel pin sheet is not suitable for highway projects. 
Impact crusher is mainly consist of rotor, hammer and counterattack plate, its working principle is stone was smashed by high-speed rotating flat hammer, and flying out hit the counterattack plate to the further crushing. It is suitable for crushing the hardness of stone, the aggregate particle size is uniform and close to the cube, less content of gravel pin sheet.
From this the impact crusher is the ideal processing equipment for construction of high-level road, especially suitable for crushing the hard rock, high efficiency and energy saving; cubic product shape, adjustable discharging particle size and simplifying the crushing process. Because of Its excellent performance and good performance, it is widely used in highway construction, hydraulic engineering, gravel processing construction and other fields

Cone crusher is the recent development of an advanced high power, high crushing ratio and high productivity crusher. The machine on the basis of absorbed other countries’ advanced level of various types cone crusher machine to develop, and cone stone crusher is suitable for crushing in metallurgy, construction, roads, and other industries, and the cone crusher propel the sand making production line, creating a new situation in road and bridge construction. In road construction, construction and other raw materials plant often need to sand and aggregate production line, sand and aggregate production line equipment produced by our company will be able to meet the requirements that the stone and artificial sand can both produced. Of course, according to the actual material situation, which the whole equipment also include vibrating feeder, conveyor equipment (belt conveyor), vibrating screen and sand washing machine. Generally, the crusher machine manufacturer will be based on the accrual situation of customer to product mix so that to meet the crusher equipment the maximum efficiency. So investors are advised to listen to many crusher manufacturers’ recommends, choose the reasonable production line configuration.
General process of sand making production line: after crushing the rocks through the jaw crusher primary crushing, and then according to the rock hardness and yield requirement to select impact crusher or cone crusher, finally, after the sand making machine processed become the standard aggregate particles, wet sand also required for the sand washing machine to clean the aggregate, finally, forming the high quality construction aggregate. Of course, according to local different conditions, the river gravel or shingle that inside the river can be directly used to process in some areas. According to the stone sediment concentration and the particle size we can use the jaw crusher, impact crusher, cone crusher, sand making machine and so on. The application of cone crusher in sand making production line is very common.

In recent years, as China’s rapid development of mining machinery, now energy saving and environmental protection has become a main trend of domestic crusher device development, so now many manufacturers put a lot of focus on energy-saving environmental protection, at present, many investors are focusing on this information. FDM as Henan a professional crusher manufacturer also attaches great importance to environmental issues.
FDM product various types of Stone crusher series, such as jaw crusher, hammer crusher, impact crusher, roll crusher, composite crusher machine, metal crusher, sand making machine, rock crusher, vibrating feeder, belt conveyer, vibrating screen and other mining machinery equipments. Today limestone crusher have various of device models, each model has its own characteristics. Over the years our company invested heavily capital in the development of environmentally friendly energy-saving equipment, since the product to the market has been well received by our customers trust and affection. For example our company’s jaw crusher, because adopt the foreign advanced technology, has the environmental protection and energy saving advantages, products are sold all over the country. For the producers, how to save more investment costs, both to meet the production needs as well as lower energy consumption, at the same time environmental protection and energy saving become a new development trend.

Mining machinery after so many years of development, product type and specification has a great development. Jaw crusher, impact crusher, cone crusher and other crusher emerge in endlessly. Recently many stone production manufacturers are all tend to cone crusher machine when they choose the crusher machine. But from a professional point of view, for the majority of stone production manufacturers, the structure of cone crusher is complex, high cost and actual yield far less than the theoretical yield is not the most economical choice.
The large heavy hammer crusher produced by FDM, as the new generation crusher equipment, customer satisfaction is high. Heavy hammer stone crusher is the equipment that the FDM based on user feedback and crushing equipment development trend, combined with the company’s actual usage to product. Compared with other rock crusher machine, heavy hammer limestone crusher has the great hammer crusher pin diameter, heavy of the hammer, high speed and other characteristics. The hammer of heavy hammer crusher has high manganese steel and bimetallic composite two kinds of hammer for you to choose, to overcome the other hammer crusher hammer wear quickly, easily broken hammer pins and other disadvantage. Hammer crusher has the great crushing ratio and low maintenance costs.
In the stone production line, sand making production line and beneficiation flow, heavy hammer crusher can replace the crushing combination of jaw crusher and impact crusher; only once can get the meet the requirements of the stone, heavy hammer crusher is still the preferred device in crusher industrial.

FDM is an internationally renowned manufacturer of mining machinery, There are mining machinery crusher, sand making machine, mobile crushing plant and construction waste disposal equipment, and vibrating screen, vibrating feeder, sand washing machine and belt conveyors and other equipment, supplemented by the complete product chain, is the main gravel, broken machinery production and export base.
FDM Group has the vitality of be bold in making innovations and venture advancing, this was a doomed enterprise will pay return. 15 years, the company has been dedicated to technological innovation, innovation is where the FDM vitality.
FDM was first established positioning: “based on the domestic, have the whole world in view.” After a long development, the company prove they have done with unfeigned data, our products are used at home and abroad for more than 80% coverage, the sales territory to occupy the first of home and abroad: China, Southeast Asia, Europe, Africa, more than 130 countries and regions, annual output value of more than 300 million. FDM has become a leader in mining machinery business. Thereinto, PE jaw crusher, PF impact crusher, PY cone crusher, SMG series cone crusher, PP series of fixed crushing plant, PP series crushing jaw-breaking mobile crushing plant, PL Sand maker etc, and corollary equipment Vibrating screen, feeder, sand washing machine and conveyor etc major combination mine mechanism success invest, let our country’s overall design of possess proprietary intellectual property rights’ large scale stone crusher, sand making machine, mobile crushing plant and construction waste disposal facilities reached the world advanced level.

Mining machinery in the economic construction occupies a very important position. Because the mining industry is the basis that national establishes the independent industrial system, Mining industry is the pillar industries of national economy. Our country mainly supports the development of energy, transportation and raw materials and other basic industries, as the pillar of these basic industries, mining machinery obtain the national focus support. For the development of coal, metal and sand- gravel aggregate provides more with international advanced level crusher machine, ball mill and sand making machine equipment, to meet the needs that economic development for energy and raw materials. 
In consideration of domestic developing trend, FDM organize the team into the actual production field do the actual operation, and then sum up experience, understand the performance and defect of product, developed a full set of sand making production line equipment, such as jaw crusher, belt conveyer, vibrating screen, sand washing machine, vibrating feeder and a series of products. Which stone crusher include coarse crushing machine, secondary crusher, fine crushing machine, crusher machine are widely used in highways, railway engineering construction.

After jaw crusher was produced in our country, slowly have the impact crusher, hammer crusher, fine crusher, double roll crusher machine, cone crusher and so on. Now in addition to this single crusher equipment has also been an integrated device, it is called mobile crusher machine. In the mining machinery industry, the mobile crusher was likened to a small portable crushing plant.
Mobile rock crusher is set the material, crushing, transmission and other process equipment as a whole, through the optimization of process flow so that it has excellent rock crushing, aggregate production, open pit mining operations of crushing performance, different models can be combined to form a powerful crushing line, to complete multi demands process operations. Its advanced design, excellent performance, high efficiency, easy maintenance, low operating cost, sable and reliable of working, so relative to the aggregate production line, the mobile stone crusher like a small moving crushing plant.
The mobile limestone crusher apply to process the materials that often required to remove, especially for highway, railway, hydropower projects and other liquidity stone work, user can according to the kind of raw materials for processing, the scale and the requirements of finished materials adopt a variety of configurations. In addition, according to different crushing process requirements compose the “screen after the first crushing”, you can also form a “crushing after first screen” flow. Mobile crusher can be combined according to the actual demand for the coarse crushing, fine crushing two screening systems, can also be combined into three sections screening systems with high flexibility to best meet the needs of different customers.
Currently the city is in the development stage, with the construction waste are progressively, has already become an extremely discordant side. It is understood that the disposal method of general construction waste is some place to stay or backfill, unified transported to dump sites for fixed buried. This shows that the traditional approach is just move the location of construction waste, does not change the actual problem. But the mobile crusher mobility for the construction waste of disposal has brought great convenience.

As we all know, since the beginning of this century, due to the development of the world economy and increasing domestic investment in infrastructure, China has become the world’s number one crusher machine producing and consuming nations. While as a crusher power is comforting, however, we have not many complete independent intellectual property rights of high-end equipment, some key components of high-end stone crusher equipment also need to import; this is a serious obstacle to the progress of rock crusher machine industries. For this reason, some technical analysts suggest: as soon as possible the construction of jaw crusher machine industry shared technology platform, providing conditions for high technology research and development. Second, enterprises in R&D crusher, be sure to use long life, low energy consumption, light weigh concept. Third, in the design of the device you should to pay attention to a number of years after the end of life should be minimal pollution, components can be recycled or decomposition, reduce environmental pollution.