L48A1 Mast Section As a manufacturer, use industry personnel, tower crane development process to know!
As a tower crane production, use industry personnel, tower crane development process to know! Tower crane construction machinery factory (http://www.fx68.net) focuses on the development of tower crane in this paper, for the reference of the industry.
L48A1 Mast Section：
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Tower crane, originated in Western Europe. According to records, the first patent for tower crane for construction was issued in 1900. In 1905, a crane with a fixed tower body and a boom was built. In 1923, a prototype of the modern tower crane was made. In the same year, the first complete modern tower crane appeared. In 1930, Germany began mass production of tower cranes and used them in construction. In 1941, DIN 8770, the German industrial standard for tower cranes, was published. The standard stipulates that the lifting capacity of tower crane is expressed by the product of lifting load (T) and amplitude (m) together with the lifting moment.
China's tower crane industry started in the 1950s. Compared with the sluggish construction industry in central and Western European countries, China's tower crane industry is in a rapid development period.
L48A1 Mast Section：
http://www.towercranesupply.com/product/l48a1-mast-section-for-tower-crane-masts
From the perspective of tower crane technology development, although new products emerge in endlessly, and the new products have improved in production efficiency, simple operation, easy maintenance and reliable operation, the tower crane technology has no fundamental change. The research of tower crane is developing in combination. The so-called combined type is to take the tower body structure as the core, decompose the tower body into several parts according to the structural and functional characteristics, and divide each part into several modules according to the requirements of serialization and generalization, following the principle of modular system. According to the requirements of parameters, appropriate modules are selected to form tower cranes with different technical performance characteristics to meet the specific needs of construction. The implementation of combined tower crane will help to speed up the development of tower crane products, save product development costs, and better serve customers.
The tower crane is divided into two categories: the upper slewing tower crane and the lower slewing tower crane. Among them, the bearing capacity of the former is higher than that of the latter. In many construction sites, we can see the tower crane with upper rotary lifting and joint height. According to whether it can move, it can be divided into walking type and fixed type. The fixed tower crane body is fixed without turning, and is installed on the whole concrete foundation or on the strip form X-shaped concrete foundation. In the construction of the house, it is usually fixed.
L48A1 Mast Section：
http://www.towercranesupply.com/product/l48a1-mast-section-for-tower-crane-masts
