Liebherr LB 28 - Manual (Page 13)

LB 28 13
Full displacement tool with auger guide
2 11:18
2 3
MODE
700
1000
1300
1600
1900
2200
rpm
0
20
40
60
80
100
Nm
15.34 m
1.73 m/min
0
200
400
600
KELLY
376.3 kN
15.34 m
1.73 m/min
200 kN
194.7 kN
° 0.1
° 0.0
0
100
200
300
400
bar
0 100 200 300 400
bar
1 3.1
0 1 2 5
bar
1.44m³
-10 0 10 20 30 40
%
%
Full displacement drilling
Technical data
Rotary drive - torque 236,020 lbf
-ftRotary drive - speed 46 rpm
Display for full displacement drilling
Performance data
Drilling depth* 58.4 ft
Drilling depth with 26.2 ft Kelly extension 84.6 ft
Max. pull force (crowd winch and Kelly winch) 202,330 lbf
Max. push force (weight of rotary and
drilling tool to be added)
44,965 lbf
Max. drilling diameter** 23.6 inch
*) Without Kelly extension
**) Other drilling diameters available on request