L46A1 Mast SectionTower Crane Development History
Tower Crane, tower crane, the development history of the Derrick, in the early 1950s, the imitation of the tower crane in China began to produce some small tower crane In the 1960s, we designed and made four models of 25TM, 40TM, 60TM and 160TM, most of which are mainly swing arms. Therefore, the 160TM attached type, 45TM inside climbing type, 120TM self-lifting type and so on are all designed and manufactured by our country. In particular, in 1984, he first introduced the world advanced technology of French company POTAIN Potin to the Construction Machinery Plant of Beijing Construction Engineering Group and successfully trial-produced the fo23b tower crane the following year, which can be said to be a milestone in the development history of our country's tower crane It greatly reduces the gap between China and foreign countries, so that the development of China's tower crane into the fast lane. By digesting and absorbing advanced foreign technologies, the QTZ80 and QTZ120 models developed by our country have reached the level of similar products in the 1980s abroad, and the modernization process has been accelerating since the 1990s The domestic and foreign markets have higher and higher requirements for tower cranes, and the number of large-scale urban buildings, water conservancy, electric power and bridges has been increasing. The market requirements have accelerated the development of new products.
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There are successively 400TM, 900TM horizontal arms and 300TM movable arm tower cranes The main performance has reached the level of the 90's abroad. The development of this series of tower cranes not only fills the gap in China, but also replaces and reduces the import quantity of large tower cranes. Looking at the development history of 50 years, the tower crane industry in China has gradually formed a relatively complete system from scratch, one of the fastest growing new industries in China, especially since the reform and opening up The tower crane industry has formed a set of relatively sound mechanisms in the aspects of design, manufacturing, management and market development. Based on the current situation of more than 300 tower crane manufacturers in China, more than 100 have obtained production licenses. In recent years, as a whole, China has become a big country in the production of tower crane and one of the main demand markets in the world.
L46A1 Mast Section L46A1 mast section is the best in this field
