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Continuous Flight Auger CFA with hex joint for construction
Continuous Flight Auger CFA with hex joint for construction
Continuous Flight Auger CFA with hex joint for construction

Continuous Flight Auger CFA with hex joint for construction

Different name:CFA/ Hollow stem auger
Main application:for CFA piles/ auger cast piles/ cast-in-place piles
Core specification parameters:drilling diameter from 300mm-800mm
Applications:Suitable for drilling in most soil conditions such as sands, clays, silts, gravels and soft rock
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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

Drilling Dia. D(mm)Joint TypePitch P(mm)Spiral THK T1(mm)Tube THK T2(mm)
300Hex Joint3001620
400Hex Joint3501620
600Hex Joint4002025
800Hex Joint5002030
Place of Origin:Made in China
Model Number:Diameter 300mm-800mm
Certification:COC/PVOC/FORM E/CO/ISO 9001
Minimum Order Quantity:1PCS
Packaging Details:Wooden cases or pallet
Delivery Time:7 working days
Competitive Advantage

Customized design

We can customize the Continuous flight auger (CFA) such as pitch, joint, length etc for to meet client’s requirements.

Quality assurance

With 10 years experiences of production of rotary drilling augers, our experienced engineers and skillful workers can guarantee the high quality of the Continuous flight auger (CFA) we made.

All around after-sales service

Our sales will response to any questions within 24 hours once we get. We pay great attention to the feedback from clients and satisfy the clients both on products and services.


The warranty period is six months since the drilling augers are delivered.