In recent years, the rapid development of the national economy has accelerated the pace of urban construction. Modern high-rise buildings have made the faces of major cities change with each passing day. According to the latest report, China has become the completion area of high-rise buildings over 200 meters in the world for 9 consecutive years. Most countries. With the strong demand for high-rise buildings, modular construction has also been rapidly popularized, and construction operations are demanding further. The advantages of boom-type cranes with flexible booms and super-lifting performance are particularly obvious. Become an indispensable equipment for the construction of modern high-rise buildings.
It is understood that with the vigorous progress of urbanization, land resources are becoming more and more precious, land utilization rate is getting higher and higher, and the construction area of large and medium-sized cities is becoming narrower and smaller. At the same time, compared with traditional construction, modular construction Hanging objects, single-units are larger and heavier. These challenges are challenging for tower cranes with large installed capacity, especially in high-rise construction where voltage drop is more pronounced. In contrast, ultra-large diesel power, hydraulic The driving boom crane not only has a large weight, but the boom can be pitched, and the balance arm is short, with its own power, and it is easy to use in construction work. It has been proved to be a hot high-rise building.
△Zhonglian Heavy Industry's first hydraulic boom tower crane LH800-63 construction site photo
At present, China is basically monopolized by foreign-funded and Taiwan-funded brands in the field of super-large jib tower cranes, but its price is relatively high, which greatly increases construction costs. To break through this situation, Zoomlion, the leader in equipment manufacturing, has assembled The strongest R&D team in the field has made great efforts to overcome the key technical problems of the ultra-large jib tower cranes, and shouldered the heavy responsibility of localization of major hoisting equipment. The world's largest internal climbing jib crane LH3350 -120 is about to come by the waves.
The strongest person shoulders the responsibility of refreshing history
As a global high-end equipment manufacturer, Zoomlion has been engaged in the research and development of tower cranes for more than 60 years. It has organized and undertaken national research projects and presided over the preparation of industry standards. The company not only has the most authoritative tower in China. Machine Technology Center and the largest tower crane laboratory, electrical laboratory, the largest electro-hydraulic servo fatigue test bench in Asia, and the largest single tower crane manufacturing base in the world. The company's products occupy a stable market share in the domestic tower crane market. First. With strong product development and manufacturing capabilities and reputable brand strength, Zoomlion has become the industry leader in technology research and process manufacturing.
△ Zhonglian Zhongke Tower crane research and development history
The elite of the elite to create the 'world's best boutique
The LH3350-120 tower crane independently developed by Zoomlion adopts the industry-leading key technology of 'diesel power, electro-hydraulic proportional control, hydraulic drive' of the boom tower crane. The products are safer, smarter and more reliable. LH3350-120 The design and manufacturing technology of the high-strength steel variable-section tower crane is made to reduce the weight of the boom to the international advanced level and greatly improve the lifting performance of the tower crane. The electric control liquid-drive transmission control technology ensures the control of the tower crane mechanism. It is more energy-saving and environmentally friendly, safe and stable; the boom back tilting flexible refusal device and its matching technology ensure the safety of the tower crane structure and ensure the flexibility, reliability and reliability when the boom is fast and reliable. The inner climbing cylinder has a jacking system technology to realize a safer, more efficient and intelligent lifting operation of the tower crane. The whole set of key technologies has applied for 12 patents, including 10 invention patents.
Zoomlion LH3350-120 is currently the largest jib tower crane in China, and it is also the largest internal crawling jib tower crane in the world. Its maximum lifting torque is 33500 kN, and the maximum hoisting capacity is 120 tons. , equivalent to lifting 17 adult elephants at the same time.
At present, the LH3350-120 tower crane is in the late stage of research and development. It is believed that its birth will be a new breakthrough in the development of building construction equipment. It is a large-scale building for China's high-rise and super high-rise buildings, airport hubs, exhibition halls, theaters, water conservancy and hydropower. The modular construction of the group provides strong technical equipment support and greatly reduces the construction cost. At the same time, its emergence will break the monopoly of foreign brands' super large-sized boom tower cranes in large-scale projects in China, and further enhance the Chinese brand in the global tower. The influence and competitiveness of the machine field.
