Zhenzhong Brand CFG20/25/30 Long Spiral Drill Rig working with JZB Walking piling frame

Long Spiral Drill Rig Low noise Without contamination No vibration when pore-forming Little influence to adjacent piles

          The series CFG long spiral driller is a new kind of drillers.It is jointly developed by the Construction Machinery Comprehensive Reaearch Institute and our company with advanced new technologies.The CFG series and its construction process has been nominated to a new state-level-construction process.

          The series CFG consists of two parts,the pile-driving frame and the drilling system .Pile-driving frame adopts the series JZL trackes-type or the seriess JZB step-type walk,which makes movements flexible and repositionning rapid.

          The rotary head device adopts the national patent techniquetri-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 or pollution arises,which brings a high rate.The CFG series is the ideal equipment for civil and industrial construction.

Technical Parameter 

CFG20/25/30 Long Spiral Drill Rig

Model		CFG20	CFG25	CFG30
Bore diameter (mm)		400-600	400-600	400-800
Bore depth (m)		20	25	29
Rotation speed (r/min)		30.5	21.3	21.3
Power head (kw)		37×2	45×2	55×2
Rotation torque (kn/m)		25.4	35.9	44.3
Permitted extracting force (kn)		25	35	50
Walk method		Walk typePedral type
Rotation angle		±180°
Adjustable range of mast		aside2°front9°back3°
Gradient		2°
Mast heigh (m)		25	30	35
Travel speed (m/min)		4	3	2.3
Rotation speed (r/min)		0.6	0.32	0.25
Rotation speed of mast (mm)		2850	3500	3800
Wheel base (mm)		2000	4000	5200
Earth specific pressure mpa	landing leg	0.38	0.4	0.6
	pedrail (hull)	0.045	0.06	0.045
Gross weight(t)		35	59	70
Outside dimension(m)		10×4.8×26.5	11×5×32	13×6.2×36
Transport mode		Disorganization

Zhenzhong Brand CFG20/25/30 Long Spiral Drill Rig working with JZB Walking piling frame