At present, the annual growth rate of the crane industry in China is lower than that of other traditional machinery industries. Crane companies must accelerate the research and development of crane production, so that it is towards economic efficiency, green, intelligent direction, electric hoists and hoists in the trend of intelligent development forward.
In the face of the better momentum of the development of China's lifting machinery industry, should focus on the technology of machinery, research and put forward for the sustainable development of lifting equipment countermeasures, although China has now entered the high-end, but the independent innovation, the establishment of their own brand, to promote the strategic development.
In the lifting machinery industry, PLC applications are more common, in addition to tower cranes, simple industrial cranes, the use of relay control products, other cranes all use PLC control, especially large tonnage lifting machinery.
In the case that the crane is not very frequently used and the sealing condition and the use of good environment, the lubricant in the gearbox is replaced once every six months, and when the use environment is bad, it is replaced once every quarter. When it is found that the crane box into the water or oil surface always has foam and determine the oil has deteriorated, should immediately change the oil. When changing the oil, the oil should be replaced strictly in accordance with the oil specified in the manual of the gearbox, do not mix the oil.