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    Zhengzhou General Mining Machinery Co., Ltd. is not only a manufacturer of industrial grinding mill, crusher and sand making machines but also a high-tech enterprise that integrates R&D, productio...
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    General Mining Machinery products have passed the international ISO:9001, GOST, the European Union CE certification,and a number of other quality certifications and have been shining in more than 120 ...
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    10 t/h limestone grinding powder production line in Nanchuan, Chongqing With the increasing of environmental protection problems, the government has adopted more strict measures to rectify the...
    Successful Jaw Crusher Consignment to Indonesia 2017.11.10 is a red letter day on which PEX250*1200 jaw crusher prepared for our Indonesia client has been successfully ...
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    Analysis on Development Prospect of Raymond Mill in Calcium Silicate Board Market Speaking of the development prospect of Raymond mill in calcium silicate board market, someone might show doubt about th...
    Industrial milling machines enters into agriculture fertilizer market and contributes to agricultura Industrial milling machines take important position of production and process in agricultural development and are indisp...
  • Grinding Knowledge
    Which mill has higher investment values and good development prospect? Engineering project investment is not a little thing no matter for the individual or the enterprise and it needs to take...
    How much is industrial grinding machine and what are the specifications of stone grinding machines? According to grinding machine types, industrial grinding machine is divided into Raymond mill, high-pressure suspension ...
  • Crushing Knowledge
    Commonly used mine crushing equipment - jaw crusher Jaw crusher(is one of the most common crushing equipment and one of the most practical equipment in the process of mine ...
    Which kind of crusher has a capacity of 400t/h for stones? Which crusher has a capacity of 400t/h for stones? Capacity of 400 t/h is relatively high for stone crushing and ordinar...
  • Industrial Grinding
    Project DackgroundLimestone grinding powder production line in Nanchuan, Chongqing is a project put into production in ... MORE>>
  • Aggregate
    Project BackgroundIn Decmeber, 2016, we made a 200 t/h basalt crushing production line for a customer in India. The out... MORE>>
  • Metallic Mineral
    Project BackgroundThe process of copper beneficiation line is relatively simple. Raw materials are crushed before the gr... MORE>>
  • Building Materials
    Project BackgroundRiver pebble is a natural stone taken from tore which is formed by uplifted ancient river bed through ... MORE>>
  • Industrial Grinding
    Limestone Product IntroductionLimestone’s main component is calcium carbonate(CaCO₃)and its hardness is 3-4 in Mohs. Lime and lime...
    Calcite Product Introduction   Calcite is widely distributed. Its hardness is 2.7~3.0, and the weight is 2.6~2.8. It’s...
  • Aggregate
    Pebble Product Introduction  Pebble is the product of yellow sand mining. It is named after a goose egg. The pebbles,...
    Coal Gangue Product IntroductionCoal gangue is a solid waste discharged from the process of coal mining and coal washing. It is a da...
  • Metallic Mineral
    Gold ore Product Introduction Gold ore is a mineral that contains gold or gold compounds. Gold ore resources in China are ab...
    Molybdenum Ore Product Introduction Molybdenum metal is a very important metal, which is known as war metal. With high strength, h...
  • Building Materials
    Construction waste Product Introduction Construction waste refers to waste residue, scrap metal, crushed stone, waste residue in morta...
    Machine-made Sand Product Introduction    The demand of sand in China is more than 10 billion tons, and the industry scale is ab...
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    General Mining Machinery believes the value of service, so we heighten credibility by service, strengthen brand by ...
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    General Mining Machinery possesses a international trading system from international marketing and promoting to business...
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    As a high-tech enterprise integrating production, market and service, General Mining Machinery already can provide ...
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    Zhengzhou General Mining Machinery is willing to contribute our theory and experience of equipment maintenance; Collect ...
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    We set up a special after-sales service department to connect with the users, and we are responsible for the demand for ...
  • Industrial Grinding
    In industrial grinding filed, General Mining Machinery grasps professional technologies throughout the entire process ch... MORE>>
  • Aggregate
    In aggregate filed, General Mining Machinery with professional crushing technologies for soft, medium hard and hard mate... MORE>>
  • Metallic Mineral
    In metallic mineral filed, General Mining Machinery can process soft, medium hard and hard minerals and provide various ... MORE>>
  • Building Materials
    In building material field, General Mining Machinery provides clients with professional resolution and complementary pro... MORE>>
WHAT YOU FOCUS ON IS THE TOP NEWS Paying attention to industrial trend, focusing on information value, exploring era opportunity.
作者: General Mining Machinery News Department
发布时间: 2017 - 12 - 23
点击次数: 0
What is craftsmanship? As the old saying goes, “Jade can not be made into anything without being cut and polished”. Craftsman generally means artisan with excellent skills and their spirits like preciseness, concentration and professional dedication are called as “craftsmanship”. “Craftsmanship” was written in the Government Work Report for the first time in this two congresses, which resulting to heated discussion around the representatives and netizens. Prim minister Li Keqiang noted in his work report on 5th March that “we will also encourage enterprises to use flexible and custom-tailored production processes and foster a craftsmanship spirit of striving for the best, so that more types of products, products of a higher quality, and brand products will be made”.Why the “craftsmanship” ...
作者: General Mining Machinery News Department
发布时间: 2017 - 12 - 22
点击次数: 1
Which machine has lower price, hammer crusher or impact crusher? In terms of crushing principle and application range, the two machines are similar. They both belong to hammer structural crusher and crush materials through impact between stone and stone, metal and stone. But the two machine do have difference which affects their prices.First, let’s learn the crushing principles of the two machines.Crushing principle for hammer crusher:the main functional part is the rotor with hammers and the rotor is composed of main shaft, disc, pin roll and hammer. After fed in the crusher by upstream feeder, materials are struck, impacted, shorn and ground into smaller particles by the rapidly rotating hammers, then qualified materials are discharged out of the discharging port. Explained specially, th...
作者: General Mining Machinery News Department
发布时间: 2017 - 12 - 22
点击次数: 0
What are parts of impact crusher? What does each part do? What problems should be paid attention to in production and installation? With these questions today, the crushing technical expert of Zhengzhou General Mining Machinery will explain the details and matters needing attention of the components of impact crusher to you.The five major components of impact crusher include: rotor, hammer, counter board, guide plate, curtain chain.First, the rotor.Sufficient weight must be provided to meet the requirement of crushing large ore. It divides into integral type - cast steel and composite type - several pieces of cast steel or steel plate. The rotor is the main working part of the impact crusher, and it is rotating at high speed, so it is required to be balanced.Balance condition:static balanc...
作者: General Mining Machinery News Department
发布时间: 2017 - 12 - 22
点击次数: 1
How to avoid limestone wast in processing? Processing technic is the key. Today, I’m gonna introduce limestone’s crushing and grinding process and how to select proper processing skills to fully use materials. Limestone brief introductionLimestone’s main component is calcium carbonate(CaCO3)and its hardness is 3-4 in Mohs. Lime and limestone are usually used as building material and industrial raw material; Limestone can be processed into quicklime and supply for desulfurization in power plant. Limestone can also be directly processed as stone material or fired into quicklime(CaO). CaO will become hydrated lime whose main component is Ca(OH)2 when it absorbs water or meets water. Ca(OH)2 can be made into lime slurry and lime putty and be used as coating material and brick and tile adhesive...
作者: General Mining Machinery News Department
发布时间: 2017 - 12 - 22
点击次数: 0
According to grinding machine types, industrial grinding machine is divided into Raymond mill, high-pressure suspension mill, vertical mill, trapezoidal mill, European mill, superfine mill, three-ring medium speed mill, coarse mill, ball mill and jet mill and so on. Different grinding machine types have differences in raw materials, utilization performance and manufacturing process so they have different prices and among them, European mill and vertical mill have a bit higher price.Price differences between same type are easily understood. The larger the model is, the higher the price is. And large model Raymond mill has a capacity times higher than that of small model.Different manufactures give different prices. There are large manufactures and small manufactures, large-scale listed ente...
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