CFA Rig, CFA Equipment

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;

Drilling Tools: CFA auger

Main Structure of CFA Rig:
1. Pillar:
Our CFA equipment 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.

Huanli Industries is a professional manufacturer and supplier of CFA rig, CFA equipment in China. We offer a variety of manufacture piling machine, such as rotary drilling rig, CFA equipment, soil mixing machine, GPS boring machine, casing oscillator, and diaphragm wall grab ect. We possess 19 years’ experience of producing, selling and serving. Our company’s products have been exported to South-east Asia, Russia, UAE and other Middle East countries, Japan, Canada and other countries. If you need CFA rig (CFA equipment), please contact us and we hope you can visit our factories by yourselves.