Unique Drilling Auger & Continuous Flight Auger (CFA) adopt the high-carbon steel (Q345B, 16Mn, Q195-Q345, etc.) angle to keep the drilling strength and efficiency.
CFA are also known as auger cast piles, augered cast-in-place piles (ACIP), auger-pressure grout piles, drilled displacement piles and screw piles.
Continuous flight auger piles is a type of drilled foundation in which the pile is drilled to its final depth in one continuous process using a continuous flight auger.At the same time the augers are withdrawn from the hole, concrete or grout is placed by pumping the concrete/grout mix through the hollow center of the auger pipe to the base.

1. Material: Q345B for flight blade and center tube;
2. Coupling: 45# or 35CrMo;
Different types of couplings being used as per the torque, drilling diameter and depth;
Quadrangle, hexagonal and octagonal coupling available;
Coupling with high-quality material proceeded by CNC machine and heat teratment;
3.Flight Detail: General thickness of 20mm and 30mm for flight blade, others customized available;
Wear-resistant welding edge;
Existing product standard system, customized CFA availble, such as blade thickness and pitch, center tube diameter, joint size, wear-resistant welding edge, etc.
4.Type: Grouting or non-grouting;
Vertical drilling, horizontal drilling, extensible drillling and others available;
5.Application: Suit for international CFA rigs as Bauer, Soilmec, Mait, Casagrande etc other brand piling rigs;
6.Customer Feedback: Applied on various drilling rigs and highly praised by domestic and abroad customers

Customized your own drilling CFA
(1). The Method of Connection: at present, we just accept Hexagonal male-female joint.
(2).Spiral Height: design as demand, according to the piling diameter and soil condition prolong or shorten, increase of efficiency by drilling more.
(3).Spiral Pitch:adjust the spiral pitch according to different working condition.
(4).Length: total length of pipe, length of single pipes(2 section, 3 section, 5 section, 4 section, 6 section, more or less).
(5).Pipe Inner Diameter: stander diameter or as requirement.
(6).Model of Teeth:
Rock Bits:B47K20H, B47K19H, B47K17H, 3050, 3060, 3065,C30, C31HD, B85, B43H, etc.
Clay Teeth:18TL, 18HD, 25VIP, 18VIP, 25T, 25HD, 22T,833-18,855, etc.