Double rotary drilling tools
CCFA drilling: cased continuous flight auger drilling
Double rotary drilling tools
Drilling equipment for double rotary drilling is reduced in weight and therefore ideal for this purpose. The drilling cases are matched to the length of the auger including the auger starter.
Casing drivers are used to insert and extract the casing string. The conveyed cuttings are released through the discharge opening.
For supporting the borehole wall and for high directional accuracy.
Casing starters cut out an annular space.
Connecting piece and length adjustment between rotary drive and auger.
Augers convey the loosened soil or rock.
Auger starters loosen the soil or rock.
Lifting device
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