The EK200LS Cased CFA from CZM features:
- Double rotary head. Rotary A drives the auger clockwise. Rotary B drives the case counter clockwise
- Dirt comes out os windows in casing coupling
- In primary drilling a first row of continuous flight auger piles are made.
- In secondary drilling a second row is made between the primary row with the casing shoe cutting 1-1/2 inches into each of the primary piles, secant to them.
- Following, H-beams or cages are introduced in secondary piles.