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Double rotary drilling, Model dba 80, Technical data – Liebherr LB 20 User Manual

Page 10

background image

10

LB 20

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 80

Display for double rotary drilling

*) Other drilling diameters available on request

Technical data

Rotary drive I - torque

1

st

gear 61,220 lbf-ft

Rotary drive I - speed

1

st

gear

14 rpm

Rotary drive I - torque

2

nd

gear 30,240 lbf-ft

Rotary drive I - speed

2

nd

gear

28 rpm

Rotary drive II - torque

1

st

gear 45,730 lbf-ft

Rotary drive II - speed

1

st

gear

19 rpm

Rotary drive II - torque

2

nd

gear 22,865 lbf-ft

Rotary drive II - speed

2

nd

gear

38 rpm

Max. drilling diameter*

24 inch

Max. drilling depth without protective hose

44.3 ft

Max. pull force

101,164 lbf