CFG 20 Long Spiral Drill:tri-circle speed reducer which features high bearing capacity and reliability.

The CFG driller is a new kind of drillers.It is jointly developed by Beijing construction machinery reaearch institute and our company.

The processhas been nominated to a new state -level-construction progess.

It has many advantages;low noise,without contamination,no vibration when pore-forming,little influence to adjacent piles and it can penetrate hardpan,sand layer,gravel layer and cobble layer with its diameter less than 60mm.

Features:

·Rotary head device adopts the national patent technique  tri- 

    circle speed reducer which features high bearing capacity and reliability. 

·Equipped with swivel joints, the output axis and the auger stem are hollow inside,

    which allows long spiral processing and supefluidity construction.

·During operation,no vibration, noise nor other pollution arises.

·An ideal equipment for industrial and civil construction.

Technical Data of CFG 20 Long Spiral Drill

Model	CFG25
Bore diameter (mm)	400-600
Bore depth (m)	20
Rotation speed (r/min)	30.5
Power head (kw)	37×2
Rotation torque (kn/m)	25.4
Permitted extracting force (kn)	25
Walk method	Walk Type
Rotation angle	±180°
Adjustable range of mast	aside2°front9°back3°
Gradient	2°
Mast heigh (m)	25
Travel speed (m/min)	4
Rotation speed (r/min)	0.6
Rotation speed of mast (mm)	2850
Wheel base (mm)	2000
Earth specific pressure of Pedrail (mpa)	0.38
Gross weight(t)	35(31)
Outside dimension(m)	10×4.8×26.5
Transport mode	Disorganization

  

   

CFG25Drill/JZB90 pile frame in KUNMING construction site

CFG30Drill/JZB120 pile frame in ZHENZHOU construction site

CFG 20 Long Spiral Drill