Two-stage Coal mill performance advantages: the traditional method is to hammer crusher gangue smash, but has many shortcomings. 1, a low yield, wet gangue smash difficult, wet gangue grinder easy to plug the sieve bottom, dry around in less than expected. 2, is broken stringent than required, the expected size of thick, less than brick-making requirements. 3, the high operating costs, a direct result of the high cost of production is low, and some again down the need to sift, aniseed and then a second crushing, crushing cost per ton of coal gangue (electricity, wear and wages) need 6.8 yuan. I developed a two-stage gangue grinder to solve the long wet gangue crushing problems. High output, low consumption, can crush more than 20 tons per hour, crushing cost per ton of coal gangue (electricity, wear and wages) not more than 2.5 yuan. Two-stage crusher shale, coal gangue and other slag with the same crushing effect. Grand mechanical engineering staff through the user visits, market investigation and research, in-depth understanding of market information and user requirements, gangue crusher design ideas of continuous improvement, innovation and invention to create a two-stage mill. Become crushing machinery industry leader. First of all, I give up the original two-stage mill production ideas, extended single-stage two-stage crusher crushing stroke, will also be given a fineness less than 3mm 90% of the desired effect, gangue crusher factory outlets, and particle size fit more reasonable. Secondly, the continuation of non-screen end of the design, the moisture content of the raw material without excessive demands, weight balance wheel design, saving 20% ??more energy in a single-motor running, energy saving. In addition, increased chassis design, the production of which is more stable and efficient. Grand gangue grinder machine in which selection of bearings for greater than two standard dual-bearing preparation, gangue crusher bulk distribution, which is a two ball bearing which means, how much the price of gangue crusher , selected such that the resistance to the rotational speed, but also a good solution to the problem load. Manufacturers generally inadequate processing capacity, the body on both sides of the bearing plate are not working, usually soldered directly with the workers to get up after a good ruler, and Tianli machinery are working out on a boring machine, to ensure that both sides in a plane, so you do not need Adopt self-aligning bearing, with self-aligning feature to compensate for the lack of processing capacity. Another use of ball bearings, readily available throughout the country, giving users a certain convenience. The majority of users use them, the double bearing preparation praise, generally as long as the bearing is not oil, by manual operation and maintenance, there have been no undue damage problems. Gangue crusher, coal crusher bulk distribution, excellent market performance (certified merchants) are provided by Zhengzhou City grand Machinery Manufacturing Company Limited. Zhengzhou City grand Machinery Manufacturing Co., Ltd. (www.sdfensuiji.com) is specialized in the "shredder, crusher, ball mill, dryer, mineral processing equipment, biomass pellet machine" of the enterprise, the company adhering to the "honesty, hard service "concept, to provide you with the highest quality products and services. Welcome to inquire! Contact: Liu.