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The rapid increase in coal production has brought about the demand for coal machinery. According to historical data, China's raw coal production growth rate is closely related to the growth rate of coal sales, with a correlation coefficient of 0.73. From 1995 to 2007, China's raw coal production increased at an annual average of 4.9%, while the output of raw coal increased from 2000 to 2007. 14.67%, accelerated in recent years. According to the historical data and our estimated domestic sales of coal-fired engines, the annual average annual growth in the sales of coal machinery from 2000 to 2007 was 39.04%.
Domestic coal machine competition is fierce, and the complete set is the core advantage. After continuous acquisitions and reorganizations, the two giant monopoly coal machinery manufacturers DBT in Germany and JOY in the United States have formed internationally. They have set up factories in China. There are a large number of domestic coal mining machine manufacturers. The overall concentration of the industry is low and the competition is fierce. The market share of leading enterprises is less than 10%, and the share of the top ten companies is less than 50%. However, single coal products have formed their own dominant enterprises. Such as the production of roadheading machine Jiamusi coal machine, coal mining machine Jixi coal machine, scraper conveyor Zhangjiakou coal machine and hydraulic support Zhengzhou coal machine. The complete set of coal machinery is the future direction of development. The current domestic supporting capacity is too heavy coal machinery, China Coal Energy, IMM and Tiandi Technology, and Sany Heavy Equipment is also aiming at complete sets.
Multi-factor coal-fired machine demand has grown rapidly. First, according to the coal industry plan, 13 large-scale coal bases will be constructed during the “Eleventh Five-Year Plan†period, and large-scale coal enterprise groups of 6 to 80 million tons and 8 to 10 million tons will be established. At the same time, small coal mines will be shut down. And other integrations have been completed and new coal mines have been newly built to bring about new demand for coal mining machinery. Secondly, the increase in the mechanization rate of coal mining has brought demand; at present, the rate of mechanization at about 50% in China is far behind the level of 95% in developed countries. By the end of the “11th Five-Year Planâ€, the mechanization degree of large-scale coal mining in China will reach 95%. More than 80% of medium-sized coal mines and 40% of small-scale coal mines. Finally, update the requirements. The economic life of coal machines is about 8 years. China's coal machinery sales have increased rapidly since 2000, and it is now in the replacement period. Update demand will increase year by year.
We expect that the growth rate of China's raw coal output will be around 10% in the next three years, and the growth rate of investment in fixed assets in the coal mining industry will not be lower than 20%, and the average annual growth rate of coal mining machinery will be over 20%.
Industry listed company investment strategy. At present, listed companies involved in the coal machinery manufacturing business mainly include Taiyuan Heavy Industry, Northern Stock, China Coal Energy and Tiandi Technology. It is recommended to focus on Tiandi Technology (overweight).
Self-propelled Boom Lift new full hydraulic self-propelled special chassis. The self-propelled high-altitude operation lifting platform vehicle with completely independent intellectual property rights has successfully developed a fully hydraulic driven, self-propelled special chassis by adopting electromechanical and hydraulic integration, reliability design and computer-aided design technologies, breaking through the previous limitation that domestic high-altitude operation lifting platform vehicles can only be modified with automobile or crane chassis.
With load driving and good operation stability. The chassis structure breaks through the traditional design theory and method, and reduces the center of gravity offset by optimizing the overall layout and load distribution of the upper platform. The unique large angle rear hinge structure is adopted, and a variety of counterweight modules are reasonably arranged to effectively balance the working torque. The H-shaped variable cross-section composite box girder rigid frame and high load solid rubber tire are adopted to increase the overall rigidity of the chassis, ensure the stability of the whole machine during driving and operation, and realize the function of the high-altitude operation lifting platform vehicle with load.
A multifunctional and multipurpose working device. Through the boom front-end bracket, the lifting device or manned platform can be quickly installed to realize the functions of material lifting, lifting and manned high-altitude operation, and provide an interface for the expansion of the working device and the rapid switching of various working devices.
Unique three-dimensional rotary lifting device. The designed three-dimensional rotary lifting device can not only automatically maintain the posture of the lifted material, but also realize the adjustment requirements of the lifted material at any height, position and direction in the space. The speed control is accurate and sensitive, and the micro movement performance is good, which meets the requirements of high-altitude operation and ventilation pipe installation in large-scale caverns.
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