Continuous flight auger drilling

A single-pass drilling method

CFA drilling (cast-in-place piles)

Continuous flight auger drilling belongs to the dry rotary drilling methods. It is suitable for predrilling as well as for the installation of cast-in-place piles. The soil (under certain conditions also rock) is loosened and conveyed continuously using a continuous flight auger. The borehole wall is supported by the auger flights filled with drill cuttings.

Procedure of producing a cast-in-place concrete pile with continuous flight auger drilling:

1. Positioning at the drilling point

2. Auger drilling until the final depth is reached

3. Extracting the auger and pumping in concrete

4. Pressing or vibrating in the reinforcement

5. Finished pile

Video: Continuous flight auger drilling

The video shows an LRB 125 installing cast-in-place piles using the continuous flight auger drilling method.

Drilling with continuous flight auger

The auger is drilled into the ground down to the final depth in a single continuous process.

Drilling rig with fixed leader for drilling depths of more than 50 metres

With a lattice boom leader and crawler crane as carrier machine, cast-in-place piles of more than 50 metres in length can be produced using the CFA method.

Machines

Results 1–6 of 15

New product

Piling rig (LRH series)

Max. pile length - 19.5 m
19.5 m
Max. pile weight - 8 t
8 t
Leader inclination - 1:3
1:3

LRH 600 with fixed leader

Piling and drilling rig (LRH series)

Max. pile length - 50.0 m
50.0 m
Max. pile weight - 40 t
40 t
Leader inclination - 1:4
1:4

Drilling rig (LB series)

Operating weight - 52.8 t
52.8 t
Max. torque - 200 kNm
200 kNm
Kelly drilling, max. drilling depth - 34.5 m
34.5 m
Kelly drilling, max. drilling diameter - 1,500 mm
1,500 mm

Drilling rig (LB series)

Operating weight - 69.3 - 79.9 t
69.3 - 79.9 t
Max. torque - 252 kNm
252 kNm
Kelly drilling, max. drilling depth - 53.2 m
53.2 m
Kelly drilling, max. drilling diameter - 3,300 mm
3,300 mm

Drilling rig (LB series)

Operating weight - 99.0 - 111.1 t
99.0 - 111.1 t
Max. torque - 347 kNm
347 kNm
Kelly drilling, max. drilling depth - 77.5 m
77.5 m
Kelly drilling, max. drilling diameter - 4,100 mm
4,100 mm

Drilling rig (LB series)

Operating weight - 115.5 - 133.2 t
115.5 - 133.2 t
Max. torque - 450 kNm
450 kNm
Kelly drilling, max. drilling depth - 95.0 m
95.0 m
Kelly drilling, max. drilling diameter - 4,500 mm
4,500 mm

Continuous flight auger drilling with the positioning system LIPOS

Foundation work for a new hospital building.

Open job report

Tools for professionals

Augers, auger starters, auger cleaners
Wear parts (chisels, teeth, pilot bits)

CFA drilling tools

Get in touch

If you have any further questions, please contact our local sales or service team.