6) slings and spreader of overweight unwarranted; (5) hoists the overweight unwarranted; (4) the role because of the rope through the pulley attached to the rope barrier encountered groove; and (3) because of the flexibility and deceleration effects (eg starting, braking, swaying, vibration, etc.> additional load caused by the role; (2) vivid rope tenon not strong; (1) wire rope wear, fatigue destruction, rust, fallacious use, size of the error, poor build quality and other setbacks brought trumped ingredients; deserve emphasized that the crane wire rope used so be sure to leave the remaining insurance factor, is formulated completely depart from some of the following ingredients: 619 for 20.5kn.m Richard structure with a diameter of 140mm, steel strength 1700mpa rope always breaking tension 123kn rope where the sale of the insurance coefficient given at 6, then the rope maximum allowable insurance load rope maximum allowable insurance load two rope total breaking force / given safety factor based on a given The safety factor, and from the table to look up the rope after rope breaking force overall model, according to the following formula can rope the maximum allowable load of insurance: therefore, the insurance reserve coefficient rope safety factor is not the lack of rope scrapped, absolutely . No unauthorized With this insurance reserves and insurance universal rope maximum allowable load, you may also want to understand: bridge cranes, gantry cranes, tower cranes, buses, cranes, single girder cranes statistics show that in 2012, the National Elevator production growth of 15%, the yield for the first time exceeded 50 million units. Development of the elevator industry is largely dependent on the development of real estate, real estate demand accounts for about 60% of the entire elevator industry demand, mostly from other elevator demand subway, high-speed rail and other infrastructure, There are shopping malls and other large cities, these requirements are relatively stable. If the future of real estate (including real estate and affordable housing) massive atrophy, elevator industry will decline from the microscopic point of view, the level of per capita in China is still very low lift, and human environment and the natural environment is close to Korea, China Taiwan compared to the stock of Chinese mainland's largest elevator is expected to reach 9 million units. But by the end of 2012, the stock of Chinese mainland lift only 2.4 million units, as well as 6.6 million units by amount, according to the annual sales of 500,000 units of view, can continue to grow for five years to 8 years. The past two years elevator procurement scale can achieve rapid growth, the country is closely related to the construction of affordable housing. It is understood that in 2013 the National Plan for new construction 6 million units of affordable housing, basically built 4.6 million units, while the number of new starts and basically completed quantity is less than two years ago, but some projects have been completed into the elevator rope tender stage, but also laid the foundation for the protection of housing purchases lift growth According to incomplete statistics, purchases, and public rental, low-rent housing, affordable housing, resettlement housing and other affordable housing-related projects account for about half of all elevator elevator project purchases, the affordable housing project is undoubtedly the elevator Government Procurement market growth of the main force. Industry insiders believe that affordable housing is basically in accordance with the regional planning and construction, a construction area contains a plurality of cells, a single lift large purchases, highlighting the advantages of scale. Stainless steel wire rope | Datong rope | Long Yuan Yuan Long fasteners from Yongnian County Fastener Manufacturing Limited. Yongnian County, Yuan Long Fastener Manufacturing Co. (www.hdyljgj.com) (www.hdyljgj.com) strong, credible, in Handan fastener industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Yuanlong fasteners and you hand into the brilliant, for a better future! You can also access (www.hdyljgj.com/supply_details_42575045.html), for more information about the company.