1. N6012-6 tower crane is a classic best-selling product of Guangxi Construction Machinery. The utility model has the advantages of full frequency conversion, stable operation, intelligentization, humanization, etc. . Since the listing of low failure rate, high efficiency, high value-keeping rate of products, the civil sector is a very high market share of a product. 2, high-efficiency Transmission, excellent performance 1 equipped with high-efficiency transmission mechanism, frequency conversion response speed than the industry equivalent products to improve 15% ; 2 frequency conversion rotary transmission can achieve reverse operation, under the premise of ensuring safety to enhance the efficiency; The precise folding line reel ensures that the wire rope is not disorderly, and ensures the continuous and efficient operation. 4 Innovative Structure Design, the use of quick installation structure, the installation efficiency of the whole machine is higher. 5 Tower Crane attachment design optimization, to achieve high independent height, attachment hanging out high, construction efficiency. 6 Rich configuration choice, tower crane design 7 arm length combination, 3 tower body configuration, high, medium and low configuration combination of 3 institutions, customers can choose the most economical configuration program based on the site. 3. Rigorous test, reliable and durable 1 the whole machine has passed over 10,000 limit working cycles, and the key components have passed the special test verification to effectively ensure the reliability of products. Equipped with the National Patented Technology Hook Fall Prevention device, can effectively prevent the hook fall caused by incorrect operation, control failure and so on. In the aspect of quality, the failure rate of suppliers during the three-package period is counted, analyzed and ranked, and the reliability of several key components such as electronic control is solved. 4 The movable platform and railings are electrophoretic processed, the standard salt spray test is more than 720h without corrosion, and the service life is twice as long as before.