With the growth of the world’s population followed by increase in electric energy consumption, the development of the high voltage power grids has tripled over the past 20 years. Further projects will expand the grids fourfold by 2030. The traditional stringing method for power line towers are costly, time consuming and harmful for both the workers and the environment. The solution to these hardships is our Spider power line stringing UAV. MMC has been always devoted to solve the problems with its products.