Single girder
bridge gantry crane is also greatly promoted the rapid development of products in the industry automation applications. Automation products mainly used in lifting machinery electronic control systems, including PLC, HMI, low frequency, low voltage electrical these four categories.
In many cranes AC induction motor speed control methods, the best performance frequency control, speed range, good stability, high operating efficiency. Controlled by the drive motor, closed-loop control can be achieved by the sensor sensing the external load and speed changes, through computer-controlled inverter to adjust the motor speed and power output, and always in the most optimal way to control the motor power input, thus achieve energy saving. On the whole
steel crane , the AC frequency control technology energy saving up to 25 ~ 40%.
Our single girder
overhead gantry crane has been part of the inverter used, but popularity is not enough wide. In addition, occupy most of the market share of ports and other areas have also been abroad inverter manufacturers dominate, leading level of only a handful of domestic manufacturers.
"Twelfth Five-Year Plan" period of China's economic development will become a critical stage of transformation, lifting transport machinery industry as the basis for the development of industrial sectors, although China lifting machinery industry automation applications overall level is not high, but whether it is lifting machinery or lifting machinery manufacturers have come to realize the user application automation products advantage. We also expect to see more automation vendors rise in lifting machinery industry, power lifting and transport machinery China catch up with world advanced level, ensure that the "second five" industry planning implementation.
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