CFA Pile, also known as auger cast piling or cast-in-place piles, is a technique used in construction to create
a concrete deep foundation. As it is cost-efficient solution and the low vibration nature, today CFA pile is a
popular foundation type in construction. Continuous flight augers (CFA) consist of a hollow stem auger with
continuous flights and head. It can be used to drill in most soil condition with diameter varies from 300mm
-800mm. Once drilling to a specified depth, a high performance concrete is pumped through the hollow stem
to then fill the cavity as the auger is extracted.
Our factory manufactures various type of CFA drill rod and head matching with different drilling rigs, which can
perform well in different soil conditions.
Joint: Hexagonal Joint or Flanged Joint
Wearing parts: Rock bit C31HD B47K17H/B47K19H/B47K22H/ or soil teeth V19/V20/18T/25T and holder
Technical Parameter of Kellyway 600mm CFA Auger
| Dia D(mm) | Length L(m) | Hole Dia d(mm) | Pitch P | Pipe dxt | Screw thk T | HEX | Unit Weight kg |
| φ600 | 1.5 | 500 | 500 | 180×25 | 20/30 | 180 | 400 |
| φ600 | 6 | 500 | 500 | 180×25 | 20 | 180 | 1160 |
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