Liebherr LRB 255 - Manual (Page 10)

10 LRB 255
Double rotary drilling
Model DBA 300
Hydraulic casing guide
Display for double rotary drilling
Technical data
Drilling drive I – torque 300 kNm
Drilling drive I – speed 26 rpm
Drilling drive II – torque 150 kNm
Drilling drive II – speed 31 rpm
*) Other drilling diameters and drilling depths available on request
Performance data
Max. drilling diameter* 900 mm
Max. drilling depth* 18.5 m
Max. pull force (crowd winch and Kelly winch) 850 kN