Ankang industrial door manufacturers, Zhenchang door industry (certified), industrial doors

Zhenchang door industry - Industrial door springs a major dimension tolerance, tolerance of the inner diameter of the spring inside diameter D1 of the basic dimensions of ± 1.0%. 2, the spring free length H0 reference dimensions. 3, the total number of turns of the spring for the total number of turns n1 tolerance of ± 1.0%. Where manual garage door springs supporting the total number of turns should be strictly controlled tolerances required for the total number of turns n1 of ± 0.5%. 4, the spring in the free state, there should be no initial tension, the gap between the coils should be less than 0.2mm, to prevent the "S" shaped curve phenomenon after installation. 5, the spring load (unit: N) a, the load tolerance allowed for the use of experimental load ± 2.0%. b, spring deflection under load when the work must be selected in the range of 40% to 75% of the whole amount of deformation of the spring. 6, spring stiffness (unit: kg / mm) is the spring stiffness units workload (the door on the total weight G) and the total degree of twist (door body lift height F) ratio. Zhenchang door industry - industrial doors pulley half: that part of the cylindrical shape, part of the tower Ankang industrial door manufacturer, suitable for high lift industrial door rope round. Coupling: The torsion spring shaft together to achieve synchronous rotation of the structural member. Rope fracture protection: that when the slide door systems rope breaks, safety devices quickly to prevent sliding doors down. Torsion anti-fracture protection: refers to the slide door torsion spring balance system break, can quickly prevent torsion axis movement, to achieve security protection organization sliding doors down. Zhenchang door industry - Industrial Doors Industrial Doors companies how to achieve standards of production? China is now also imported from abroad every year more than 20 billion dollars of industrial doors Ankang supplier of industrial doors, these are mostly domestic production is not yet high profile industrial doors. Since the rate of the country with high-grade industrial doors only about 50%; large, sophisticated, complex, long life and other high-tech industrial door industry accounts for only about 30% of the total door. China's industrial door industry is still relatively low labor productivity of industrial doors custom-being, an average of only 150,000 yuan / person-years or so; commercialization rate of China's industrial sector has just over 50% (more than 70% in developed countries); industrial doors Standard parts coverage is low, only about 50%; industrial door production is still relatively low level of specialization. All these show that China's industrial door industry is not strong enough, China is not powerful industrial doors. Ankang industrial door manufacturers, Zhenchang door industry (certified), industrial doors provided by the West Door Co. 安振昌. West 安振昌 Door Co., Ltd. (www.zhenchangdoor.com) is a leader in Xi'an, metal door, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Zhenchang door industry leadership with the staff warmly welcome all inquiries negotiations to create Zhenchang door industry a better future.