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长螺旋钻孔灌注桩等各种基础施工工艺。广泛应用于城建、居民建筑、能源、市政、交通、水利的灌注桩、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、高效、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