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CFG series long spiral drilling machine main structure comprises a chassis, driving room, rigs, bracing, power head, drag mechanism, drill series, hydraulic system and electrical system, etc.. The chassis part of the use of full hydraulic walking, walking trolley with a single hydraulic cylinder drive, with a flexible shift, stable characteristics. And rotary mechanism of rotary drill rig with medium speed hydraulic motor through a planetary gear reducer drive, due to hydraulic motor with stable power, smooth running, small inertia and start efficiency higher characteristic and rig has a smooth rotation, no shock, no vibration, the whole good stability and long life and other characteristics. The drilling machine has no hydraulic support leg, which further improves the stability and applicability of the whole machine. Drill frame by hoisting oil cylinder and the joint operation, fast and reliable; diagonal bracing adjustment, walking pile frame rotary, a power head drilling improve, both for operating room centralized control and convenient operation. Operating room using front, not only to open the vision, but also safe and comfortable. CFG long spiral drilling adopts semi disintegration tractor trailer transport, mainly composed of 8 Shuangqiaoshan tire, transport just removing components can meet the requirements of national highway transportation.