Double rotary drilling, Model dba 200, Technical data – Liebherr LB 28 User Manual
Page 14
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14
LB 28
m/min
11:30
2
3
MODE
700
1000
1300
1600
1900
2200
rpm
0
20
40
60
80
100
Nm
%
-10.80m
3.27
0
200
400
600
KELLY
12.0
kN
0.00m
0.00
m/min
200
kN
-88.4
kN
°
0.0
°
0.0
0
100
200
300
400
bar
0
100
200
300
400
bar
15
0
1
2
5
bar
9.7
0
100
200
300
400
bar
-10
0
10
20
30
40
0.29m³
%
Double rotary drilling
Model DBA 200
Display for double rotary drilling
*) Other drilling diameters available on request
**) Other drilling depths available on request
Technical data
Rotary drive I - torque
1
st
gear
143,825 lbf-ft
Rotary drive I - speed
1
st
gear
9 rpm
Rotary drive I - torque
2
nd
gear
71,545 lbf-ft
Rotary drive I - speed
2
nd
gear
18 rpm
Rotary drive II - torque
1
st
gear
75,970 lbf-ft
Rotary drive II - speed
1
st
gear
17 rpm
Rotary drive II - torque
2
nd
gear
37,615 kNm
Rotary drive II - speed
2
nd
gear
34 rpm
Max. drilling diameter*
29.5 inch
Max. drilling depth**
56,7 ft
Max. pull force
202,330 lbf