Xuzhou Branch Chen Seoul Machinery Co., Ltd. - a common classification 3. dragline excavators draglines, also known as dragline excavators. Its excavation is characterized by: "backwards down weight cut soil." Suitable for Ⅰ, Ⅱ type of soil excavation down below the surface. When working, use a bucket to throw to the inertial force, farther than digging, digging radius and depth of excavation is large, but not as flexible and accurate backhoe. Especially for large and deep excavation pit or underwater excavation. The clamshell clamshell excavator, also called the grab. Its backhoe features: "straight up and down, the weight cut soil." Suitable for Ⅰ, Ⅱ type of soil excavation down below the surface, commonly used in soft soil area in the excavation pit, caisson and the like. Especially for digging deep, narrow pit, the old dredge digging water channels and silt, or for loading gravel, slag and other loose materials. Excavation ditch excavation side excavation and positioning two kinds. As will grab a gate made of strips, Xuzhou auger can be used to load ore block log yard, wood, timber. Excavators - Xuzhou Machinery Co., Ltd., Seoul Branch Chen updated design theory, increase reliability and service life. United States, Britain, Japan and other countries to promote the use of finite life design theory, Suzhou auger, to replace the traditional infinite life design theory and method, and fatigue damage accumulation theory, fracture mechanics, finite element method, optimization design, computer-controlled electro-hydraulic servo fatigue testing technology, fatigue strength analysis method and other advanced technology to strength research hydraulic excavator, Wuxi auger, promote efficiency and competitiveness of high quality products. The United States made dynamic design analysis method of dynamic strength evaluation, and the creation of a theory to predict product failure and updates. Japan enacted the strength assessment procedures l hydraulic excavators member, developed the reliability of information processing systems. Under the guidance of the basic theory of the above, by means of a large number of tests, shorten the research cycle of new products, accelerated the process of upgrading the hydraulic excavator, and improve their reliability and durability. For example, the operating rate of the hydraulic excavator of 85% to 95%, the service life of over 10,000 hours. Excavators - Xuzhou Machinery Co., Ltd., Seoul Branch Chen reform and opening up, and actively introduce, digest and absorb foreign advanced technology, to promote the development of China's excavator industry. Wherein Guiyang mining machinery plant, construction machinery plant Shanghai, Hefei mining machinery plant, the Yangtze River were the introduction of the German excavator factory Liebherr (Liebherr) Hydraulic Mining Company A912.R912.R942.A922.R922.R962.R972.R982 manufacturing technology. A few years later, the introduction of Germany Demark Hangzhou Heavy Machinery (Demag) the company's H55 and H85 hydraulic excavator manufacturing technology, the introduction of the German Construction Machinery Factory Beijing Ao Jiakai (0 & K) Company RH6 and MH6 hydraulic excavator manufacturing technology. At the same time, there is Shandong Bulldozer Plant (its excavator production base was renamed Hill redevelopment Machine Co., auger, including two brand STRONG and JCM), the Yellow River Engineering Machinery Plant, Jiangxi Chang-Lin Machinery Factory, Shandong Linyi Construction Machinery Factory and other joint introduction of Komatsu's PC100 Japan, PC120.PC200, PC220.PC300, PC400 hydraulic excavator (addition to the engine) complete set of manufacturing technology. These plants through several years of introduction of technology digestion, absorption, transplant, so domestic hydraulic excavator performance indicators improve to international standards of the 1980s, production has increased every year. Due to the increasing domestic demand for hydraulic excavators and diverse, in the adjustment of state-owned large and medium-sized enterprises of product structure, affect a number of other factory machinery industry added a hydraulic excavator industry. Auger auger _ _ Shenzhen Branch Chen Seoul (high-quality businesses) are provided by Xuzhou Machinery Co., Ltd., Seoul Branch Chen. Xuzhou Branch Chen Seoul Machinery Co., Ltd. (xzkcr.com) (www.kechener.com) Qin Hongqiao is located in Xuzhou City Industrial Park. Scraps and development in the wave of market economy, the current Division Chen Er company has a high reputation in the dust removal equipment, and enjoys a good reputation. Seoul Branch Chen made the whole network business alliance certification, marking our service and management level has reached a new height. Branch staff Chen Er company is willing to insight and common development for a better future.