Liebherr LB 28 - Manual (Page 12)

12 LB 28
Auger with auger cleaner
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
%
%
Continuous flight auger drilling
Display for continuous flight auger drilling
Technical data
Rotary drive - torque 236,020 lbf-ft
Rotary drive - speed 46 rpm
Performance data
Drilling depth with auger cleaner* 56.8 ft
Drilling depth without auger cleaner* 58.4 ft
Drilling depth with 26.2 ft Kelly extension
without auger cleaner
84.6 ft
Max. pull force (crowd winch and Kelly winch) 202,330 lbf
Max. push force
(weight of rotary and auger to be added)
44,965 lbf
Max. drilling diameter** 39.4 inch
*) Without Kelly extension and without leader extension
**) Other drilling diameters available on request