CFA Continuous Flight Auger Piling Rig 320 kN.m Torque 34 m Depth Cast-in-Place Pile Machine
The CFA-320 is a purpose-built continuous flight auger piling rig designed for fast, vibration-free cast-in-place pile construction. A hollow-stem continuous flight auger drills to a maximum depth of 34 m, and concrete is pumped through the auger as it is extracted, producing a continuous reinforced concrete pile in a single pass without casing and with almost no ground vibration. This makes CFA piling the preferred method in soft soils close to existing buildings, roads and utilities.
The machine is powered by a 261 kW EU Stage V engine and a high-pressure hydraulic system that delivers a rated output torque of 320 kN.m and a crowd force of 200 kN. A 320 kN main winch line pull and a heavy-duty base carrier give the rig the strength to lift long auger sections and to keep production rates high throughout the working shift.
Key Features
- Continuous Flight Auger Method: A hollow continuous flight auger drills and casts the pile in one continuous pass, producing vibration-free cast-in-place piles without temporary casing.
- High Output Torque: The 320 kN.m rated output torque and 200 kN crowd force push the auger steadily through soft clay, silt, sand and loose fill.
- 34 m Single Auger: The full-length 34 m CFA auger eliminates joints, speeding up drilling and improving the integrity of the finished pile.
- Powerful Main Winch: A 320 kN main winch line pull handles long auger sections and reinforcement cages safely and efficiently.
- Low Vibration and Noise: The CFA process generates minimal vibration and noise, protecting adjacent structures, roads and underground services.
- Stage V Clean Power: The 261 kW EU Stage V engine delivers strong torque with low fuel consumption and emissions, ready for regulated markets.
Technical Specifications
| Parameter |
Specification |
| Model |
CFA-320 |
| Max. Drilling Depth |
34 m |
| Max. Drilling Diameter |
1000 mm |
| Rated Output Torque |
320 kN.m |
| Engine Power |
261 kW |
| Rotary Speed |
6-22 rpm |
| CFA Auger Length |
34 m |
| Crowd Force |
200 kN |
| Main Winch Line Pull |
320 kN |
| Operating Weight |
78 t |
| Emission Standard |
EU Stage V |
| Certification |
CE, ISO 9001 |
Applications
The CFA piling rig is widely used for building foundations, industrial warehouses, retail centres, road and rail embankments and environmental barriers where vibration-free piling is required. Its high productivity suits large repetitive pile grids.
Because the CFA method avoids casing and generates very little spoil, it is also a cost-effective and clean solution for sites with limited working space and strict environmental limits, including inner-city developments and sites close to sensitive structures.
Packaging & Quality Assurance
The rig, auger and pumping equipment are shipped with rust-preventive coating and protective wrapping, secured on a flat rack or break bulk vessel. The long auger sections are supported on purpose-built cradles to prevent bending during transport.
A 12-month warranty covers the main structure, power unit and hydraulic system. Commissioning support, operator training and a full set of maintenance documents and spare parts lists are provided, with remote diagnostics available for the life of the machine.