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  • Double Roller Crusher For Coal Crushing - China

    price: contact company for price


    The roller crusher has widely application in the industries of mining, building materials, chemical industry, metallurgy, etc. The roller crusher can do secondary and fine crushing of materials with middle hardness or middle minus hardness, such as mineral, rocks, coke, coal, slag, scoria, and fire- proof material, etc.

    Working Principal of double roller crusher

    Adjustment of discharging- material size: The wedge- shaped or gasket control is installed between two roll wheels. There is adjusting bolt in the top of the control. The wedge makes the active roll wheel away from fixable wheel, while the adjusting bolt is pulling up the wedge, this make the gap in the two roll wheels and discharging- materials size larger. When the wedge is pulled down, the active roll wheel under the action of holddown spring makes the gap and discharging become smaller. The gasket control trough regulates the quantity or thickness of the gasket to adjust the size of discharging- materials.


    1 . Equipment in the grinding system PDG- II to roll crusher, grinding equipment production capacity can be fully tapped , and can increase production by 30% - 40 % of the total energy consumption can be reduced by 20 % - 30 % .

    2 compact structure, light weight, small size , the same capacity for grinding system requirements , equipment PDG- II to roll crusher can save significant investment.

    3 simple structure, small footprint, operation and maintenance more convenient .

    4 Dust board installed inside , good sealing performance , avoiding the Young tiny splash crushed material , less dust , low noise , greatly improved work environment .

    5 . Abrasive roller weight to optimize the design of new equipment does not need to change the use of the mill roll body for life , while old roller machine for one year would need to open repair, replace the roller body .

    6 fitted with replaceable wear liners on the roll crusher roller, wear- resistant liner using advanced materials, has a long life , not damaged, and easy maintenance . Life of up to one year of continuous wear serious, remove the lid can be replaced . Small amount of maintenance , and low cost , which is any other type of domestic crushers are unmatched .

    7 on the roll crusher equipped with safety guards, when there is an accident metallic iron into the crushing chamber , the guard action, iron leakage normal operation of equipment .

    8 abrasive roll crusher roller body roll gap between the 1mm ~ 20mm adjustable , according to the requirements of the particle size after crushing a good tune roll gap , broken particle size can be reliably controlled , all in an ideal particle size discharged from the bottom of the crushing chamber .

    9 simple and reasonable structure, low operating cost , smooth operation, high efficiency, high crushing efficiency , the particle size is adjustable.

    10. The roll crusher is a low- speed and high pressure rollers squeeze works. Material from falling into the upper vertical crusher crushing chamber , the strong pressure generated by the squeeze between two rollers under the crushing majority of the material has become powdery , granular material inside the remaining small portion has produced a lot of cracks. In the further process of crushing , grinding can greatly reduce energy consumption and improve yield.

    Hongji Mine Machinery is a famous stone crusher manufacturers in China which was established in 1960. We can supply many kinds of stone crusher such as jaw crusher, hammer crusher, impact crusher, combined crusher, roller crusher , cone crusher. If you want to buy any kinds of stone crusher, please contact us at any time.


    Company Contact:

    • Phone: 8637167662768

    • Address: No.668 (Hongji Industrial Park), West Zhongyuan Ro, Zhengzhou, China

    • Email: Email

    Published date: December 31, 2014 -

    • Business Description: Henan Hongji Mine Machinery Co., Ltd. is a reputed manufacturer and joint

      stock enterprise with import & export rights and mainly produces large

      and medium sized mining machinery, metallurgy machinery and building

      material equipment. We are founded in August 7th, 2008 by restructuring,

      setting up 4 branch companies and a research center. The history of our

      group can trace back to Zhengzhou Huaye Industrial Machinery Co., Ltd.,

      which was established in 1969. After more than 40 years' development, we

      have built into a comprehensive enterprise that comprises R&D, test,

      manufacture, sales and service functions.

      Our headquarters, covering 80,000 square meters, is located in the Mechanical Industrial Park of Zhengzhou City, where is in the transportation junction of central China, owning more than 180 sets of heavy processing equipment with an annul output of more than 800 sets of equipment. Our fixed asset is 80,000,000 RMB (more than 11,000,000 USD).

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