According to the Jiangxi Science and Technology Department, a local company has made a groundbreaking achievement by successfully developing the "GBM Gearless Crane." This innovative machine integrates the functions of a motor, reducer, reel, and transmission system, overcoming a long-standing technical challenge that has persisted in advanced manufacturing countries in Europe and America for over 80 years.
The crane was developed by Jiangxi Gongyi Machinery Co., Ltd., which reimagined the traditional four-beam crane design. The innovation has been recognized as the first (set) major technical equipment demonstration project in China's industrial sector, alongside projects involving detectors and cloud computing technologies.
Yu Liansheng, Chairman of Gongyi Machinery Co., Ltd., explained that conventional cranes use a speed reducer. However, under prolonged high-load conditions, the assembly reference plane gradually shifts, leading to oil leaks, excessive noise, and gear damage. Since the 1930s, European and American countries have attempted to develop gearless crane technology but faced repeated challenges without success.
At the heart of the GBM Gearless Crane is its lifting trolley, which is compact and lightweight. For example, a 32-ton lifting trolley in traditional cranes weighs 10.97 tons and occupies 16.49 cubic meters, while the GBM version weighs only 5.46 tons and takes up 7.56 cubic meters—both reduced by more than 50%. In addition, the GBM crane excels in safety performance, overload protection, error correction, and offers millimeter-level intelligent control, setting a new global standard.
To date, the device has secured over 20 international and domestic patents. Its applications extend beyond civil and industrial sectors such as elevators and cranes, reaching critical military industries like helicopters, submarines, and tanks. This advancement not only marks a significant leap in engineering but also highlights China's growing influence in cutting-edge technological innovation.
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