CFA auger sections: flight pitch, center tube and couplings
Continuous flight augers use a continuous helical arrangement rather than the short tool used in a conventional Kelly drilling cycle. For CFA systems that place concrete through a hollow stem, the auger geometry and concrete path must be coordinated with the rig and approved construction process.
CFA Augers
How to specify the right configuration
Specify outside diameter, section length, flight pitch, center-tube dimensions and the coupling on each end. Check the assembled string length and the starter or end configuration. A replacement section should be checked against the actual coupling drawing and mating sections.
Catalog specifications and listed options
Continuous flight auger sections and configurations for foundation drilling applications. Diameter, length, flight pitch, center tube and connection are selected to suit the project and drilling system.
- Continuous flight auger
Assembly review and inspection
Send the rig model, existing auger drawings and required section schedule. Confirm whether the inquiry is for a complete string, individual section or coupling. Inspect flights and connections using the system maintenance criteria; this page does not prescribe pumping or auger-withdrawal parameters.
What details define a CFA section?
Specify diameter, working length, flight pitch, center tube and connection. Send the mating-section drawing and drilling-system details so the continuous-flight arrangement can be reviewed.
Preparing a quotation request in Saudi Arabia
- Identify the rig model, product, quantity and application; include the ground profile when specifying a cutting tool.
- Send a dimensioned drawing or clearly scaled photos. Identify mating components and distinguish measured dimensions from estimates.
- State the delivery city, required date and project documentation requirements. Confirm the included components before ordering.