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

Page 10

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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

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