ABI Mobilram CFA Drill Head (MDBA)

Hammer & Steel CFA Drill Head, Continuous Flight Auger, Continuous Flight Augers

The CFA (Continuous Flight Auger) Drill Head is suitable for all kinds of applications: ground release drilling, dwell drilling, or pile foundation drilling. The unit contains an injecting head used for the installation of CFA piles as well as part and full displacement piles.

Difficult soil conditions can be made pilable by ground release drilling. This is the most economical and most frequent practiced application in connection with piling and extracting works. High pressure swivels between auger drive and auger head permit injecting of various medias for flushing purposes or concreting for CFA piles.

Our auger drives find a further use by wet and dry soil mixing procedures (WSM - Wet Speed-Mixing and DSM - Dry Speed-Mixing). With single or twin auger drives single piles, groups or secant pile walls can be produced. The existing soil material is mixed with a cement grout by WSM or with lime by DSM.

The Mobilram with CFA Drill head achieves high production rates with no excavation and operates as a noiseless and vibration-free system.

CFA Drill Head Model 3500 Model 120 Model 6000 Model 150
Torque (kNm) 35 120 60 150
Torque (ft/lbs) 25,800 88,475 44,230 110,595
Center Shaft ID (mm) 60 140 90 140
Center Shaft ID (in) 2 ⅓ 5 ½ 3 ½ 5 ½
Max Auger Diameter (mm) 1,000 1,220 1,000 1,220
Max Auger Diameter (in) 39 48 39 48

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