Dba 300, Double rotary drive – Liebherr LRB 255 User Manual
Page 10

10
Due to impr
ovement and engineering pr
ogr
ess we r
eserve the right to change specifications without notice.
All dimensions in mm / inch; only metric values are valid.
4066
875
700
357
990
70
990
38
.98
291
296
304
296
1834
40°
1073
915
72
.20
42
.24
36
.02
70
160.08
34.45
27.56
14.06
38.98
2.76
11.46 11.65 11.97 11.65
2.76
470
R555
R
21
.85
125
4.92
968
38
.11
1500
1800
1628
64
.09
70.87
59.06
18.50
Concreting kelly,
octogon 190 mm (7.5 inch)
Drive flange
Drive I
for casing
Drive II
for auger
Hydraulic motors
Oil drain plug
Sliding cylinder for relative adjustment,
stroke 700 mm (27.6 inch)
Putzmeister 5 1/2"
Flushing head DN125 (5 inch)
Cardan
DBA 300
With basic machine LRB 255
Specifications DBA
300
Max. speed
Drive I
1
st
gear
10 rpm
Drive I
2
nd
gear
23 rpm
Drive II
1
st
gear
14 rpm
Drive II
2
nd
gear
29 rpm
Max. torque
Drive I
1
st
gear
300 kNm 217,000 ft.lbs
Drive I
2
nd
gear
128 kNm
93,000 ft.lbs
Drive II
1
st
gear
150 kNm 109,000 ft.lbs
Drive II
2
nd
gear
72 kNm
52,000 ft.lbs
Weight
approx.
9200
kg
20,283 ft.lbs
Indicated values do not consider efficiency loss.
• Compact design
• Specially designed drives for “in front of the wall” applications
• Relative adjustment cylinder for auger +/- 350 mm (+/- 13.8 inch)
• Flushing head DN125 (5 inch)
• Concrete pressure sensor
Special features
Basic machine
LRB 255
Double rotary
drive