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CFA
CFA
continuous
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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Description

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

Video

Specifications
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
Brand Name:KIMDRILL
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.

warranty:

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

Gallery

auger packing

auger loading

FAQ

1. What is a drilling auger?

A drilling auger is a tool used in construction and geotechnical engineering for boring holes into the earth. It's a large, spiral-shaped drill bit typically attached to a rotary drilling rig.

2. How does a drilling auger work?

The auger, when attached to a rotary drilling rig, rotates to cut through soil or rock. As it rotates, its spiral blades convey the drilled material back to the surface, clearing the hole.

3. What are the common uses of drilling augers?

Drilling augers are primarily used in construction for creating foundations for large structures, installing utility poles, and similar applications. They're also used in geotechnical engineering for soil sampling and testing.

4. Can drilling augers be used in all types of soil?

Drilling augers are versatile but their efficiency depends on the soil type. They work well in soft to moderately hard soils. For very hard rock or dense soils, specialised augers or drilling methods may be needed.

5. What factors determine the choice of a drilling auger?

The choice depends on the project requirements, such as the depth and diameter of the hole, the type of ground, and the desired speed and efficiency of drilling.

6. Are there different types of drilling augers?

Yes, there are various types of augers, including flight augers, bucket augers, and continuous flight augers, each designed for specific conditions and purposes.

7. How deep can a drilling auger go?

The depth a drilling auger can reach varies based on its design and the power of the drilling rig. Some can drill several metres deep, suitable for most construction and sampling needs.

8. How is the drilled material removed from the hole?

The spiral design of the auger blades transports the drilled material up and out of the hole as the auger rotates.


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