CFG系列长螺旋钻机靠电器液压整机操纵、步履式行走方式。工作时采用长螺旋钻机钻至设计标高后，提钻时通过混凝土输送泵压灌混凝土成桩（亦可后插钢筋笼）。即成孔、成桩一机一次同步完成。安装回转接头亦可进行潮流态及常螺旋钻孔灌注桩等各种基础施工工艺。广泛应用于成见、居民建筑、能源、市政、交通、水里的灌注桩、挤扩桩、软基处理及城市高层地基处理的施工。具有不受地下水位限制、高校、节能、环保，过载能力强及机械化自动程度高等特点。 Products Introduced 　CFG series long screw rigs on electrical hydraulie whole sets of manipulation, while a walk, work to design a long spiral 2,274 drilling rigs, to drill through concrete transmission pump pressure fed into concrete piles (also reinforced cageinserted after) Produced as a synchronous Kongcheng pile complete.Installation otation joints may also be a supuer long screw bored attitude and various oundation construction techniques.Widely used for urban construction,energy,municipal,transportation,water conservancy the pile,expanding pile, the soft base with the construction of a free water restrictions, and efficiency,and energy conservation,environmental protection,automatic Guozainengli strong degree of mechanization and higher features．   型号项目 CFG13 CFG15 CFG18 CFG20 CFG21 CFG23 CFG25 CFG26 CFG28 CFG30 CFG31 成孔直径/mm 300～600 300～600 300～800 400～800 400～800 400～800 400～800 400～800 400～800 400～800 400～800 成桩深度/m 13 15 18 20 21 23 25 26 28 30 31 动力头功率/kW 22×2 22×2 37×2 45×2 45×2 45×2 55×2 55×2 55×2 55×2 55×2 最大提拔力/kN 180 180 240 240 240 240 400 400 400 400 400 主机转速r/min 21 21 21 21 21 21 21 21 16 16 12 输出扭矩/kN.m 15.8 15.8 34 39 39 39 48.5 48.5 63.7 63.7 83 行走步距/mm 1200 1200 1200 1200 1200 1200 1500 1500 1500 1800 1800 回转角度° ±90 ±90 ±90 ±90 ±90 ±90 ±90 ±90 ±90 ±90 ±90 桩机质量/T 23 24 30 32.5 33 36 43 45 52 63.5 70