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  SMW(Soil Mixing Wall)
 
Features of CFA Rig
High efficient and cost efficient, environmental friendly technology;High production levels are attainable in suitable soil conditions;
The system is economical in suitable soil profiles;Noise levels are low and limited to the engine noise of the CFA rig;There is no vibration associated with CFA piles;
Other Considerations
The manufacture of the pile is largely in the hands of the operator and there needs to be adequate monitoring of concrete / grout flow and pressure, as well as the extraction rate of the flight, so as to be completely satisfied that the piles are made correctly.
In sandy soils below the water-table there is a reduction in soil strength in the immediate vicinity of the pile due to the drilling operation. As a result of this, the load / deflection performance of a CFA pile is inferior to that of a driven pile.
The steel reinforcing cage is inserted into the wet concrete / grout after the pile is cast.
Soil falling off the flight can contaminate the concrete / grout of the pile shaft.
CFA piles have to be cast to ground level. This results in waste of concrete and excess trimming if there are deep cut-off levels.
There is very limited indication of soil strength during the drilling operation.
Pile diameter: 300mm upto 750mm;
Prilling Tools
CFA auger
 
1. Crawler mounted CFA rig
Crawler mounted CFA rig��pilingmachines
Crawler mounted CFA rig��pilingmachines Crawler mounted CFA rig��pilingmachines Crawler mounted CFA rig��pilingmachines
Main technical Specification (  Crawler mounted CFA rig )
Model No. CF200 CF260 CF300
Max. drilling depth 18M 20M 23M
Max. drilling dia. 800mm 1000mm 1200mm
Rate output 200KN.m 260KN.m 300KN.m
Rotating speed 7-28RPM 7-28RPM 10-22RPM
Max. lifting force 165KN 230KN 300KN
Max. pushing force 150KN 215KN 260KN

Mast inclination Side/forwards

6 �� /5 �� 6 �� /5 �� 3.5 �� /3.5 ��
Working dimension (LxWxH) M 9x4.3x26 9x4.3x28 10X4.3X30
Transport dimension (LxWxH) M 15x3x3.4 17x3x3.5 20X3.2X3.6
Weight 55T 68T 76T
2. Walking type CFA Rig
Walking type CFA Rig��pilingmachines
Walking type CFA Rig��pilingmachines Walking type CFA Rig��pilingmachines Walking type CFA Rig��pilingmachines Walking type CFA Rig��pilingmachines Walking type CFA Rig��pilingmachines

Main technical Specification ( Walking type CFA rig )

Model No.

CF20

CF25

CF30

Working depth (M)

20

25

30

Working dia.(mm)

400-600

400-600

400-600

Rotary head

45KW X 2nos

55KW X 2nos

55KW X 2nos

Torque output

28KN.m

48KN.m

48KN.m

Rotating speed

30RPM

20RPM

20RPM

Lifting force

210KN

450KN

450KN

Working dimension (LxWxH) mm

12400x5300x26500

13500x5800x32300

13300x6400x36900

Transport dimension (LxWxH) mm

15800x2500x3280

18800x2500x3450

13200x2500x3100

Weight

35ton

45ton

60ton

Moving function

Hydraulic step

Hydraulic step

Hydraulic step

Max Slope

2 degree

2 degree

2 degree

Main structure includes the following:

1. Pillar:

Adopting heavy duty square structure form, equipped rail slippery course in the front as the guidance of the movement in the power head. There is top pulley in the upper, used to make power head, reinforcing cage ups and downs.

2.Diagonal bracing

Its upper and lower parts splice with the pillar and platform, through hydraulic oil cylinder make diagonal bracing adjustable, realizing the starting work after mechanical crane tower 75 degree angle and the falling work after falling tower 15 degree angle. The screw thread can adjust the size of diagonal bracing, realizing the front and back, left and right of pillar adjustment.

3.Chassis

Hydraulic chain track chassis, high automaticity, with the foot mechanism and swing mechanism, to walk and turn 360

4.Control cabin

The control cabin adopts the thin slab structure. And all control push buttons and handles are placed on the control panel in the control cabin.

5.Hydraulic control system

Adopting four leg cylinders, two up tower oil cylinder and a walking oil cylinder to manipulate piling machine rotary, rising and falling tower and walk.

6.Electric control system

The electric control system controls operating modes of hoist, power head and main pump.

 

 

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