"The EBZ85C cantilever driving machine is the first excavating equipment used in the smallest excavation roadway in China. Under the premise of satisfying the ventilation requirement, the roadway section is small and the driving speed can be greatly accelerated. On December 1, guo qiang, a staff worker who was participating in the commissioning of the equipment, said. The related cantilever support boots machine is one of the group company scientific research project, aims to reduce the cross section of roadway, speed up the advance rate, reduce the cost of tunneling and supporting to reduce the amount of coal and gangue, decrease the cost of washing, environmental protection. EBZ85C type cantilever support boots machine cutting plane in the world is the smallest and the most safe and efficient mining excavation equipment, is China's first brace boots type of shield machine products, in the liaoning shield group and the German herrenknecht ag joint design research and development, manufacturing, its main characteristic is to realize the parallel operation, digging anchor is mainly suitable for the coal mine horse-shoe cross-section small cross section of the quick rock drivage. The EBZ85C cantilever driving machine was installed in the second mine shaft on 28 November, which was applied to the construction of high suction roadway in 21306 fully mechanized working face of no.8 coal 13 mining area. The equipment has been put into the trial operation stage after intense debugging.