Liebherr LB 28 - Manual

Drilling rigs
Foundation machines
LB Series
LB 36
Modes of operation
Liebherr Nenzing Crane Co.
7075 Bennington Street
Houston, TX 77028-5812
Tel.: (713) 636-4050, Fax: (713) 636-4051
[email protected]
www.liebherr.com
Weight
Operating weight* 75.4 US t
Engine
Liebherr D 936 L A6
In-line 6 cylinder diesel engine
270 kW (362 hp) at 2000 rpm
*) Weights can vary depending on the fi nal confi guration of the machine. **) Other drilling diameters available on request.
LB 20
Rotary
Max. torque 147,500 lbf-ft
Kelly winch
Line pull 40,500 lbf
Rope crowd system
Crowd force 67,500 lbf
Travel of sledge 47.6 ft
Kelly operation
Max. drilling diameter** 3.9 ft
Max. drilling depth 115 ft
Weight
Operating weight* 83 US t
Engine
Liebherr D 936 L A6
In-line 6 cylinder diesel engine
270 kW (362 hp) at 2000 rpm
Rotary
Max. torque 177,020 lbf-ft
Kelly winch
Line pull 45,000 lbf
Rope crowd system
Crowd force 72,000 lbf
Travel of sledge 52.5 ft
Kelly operation
Max. drilling diameter** 4.9 ft
Max. drilling depth 131 ft
LB 28
Weight
Operating weight* 106 US t
Engine
Liebherr D 846 A7
In-line 6 cylinder diesel engine
350 kW (469 hp) at 1900 rpm
Rotary
Max. torque 206,500 lbf-ft
Kelly winch
Line pull 56,200 lbf
Rope crowd system
Crowd force 90,000 lbf
Travel of sledge 60.7 ft
Kelly operation
Max. drilling diameter** 6.2 ft
Max. drilling depth 164 ft
Weight
Operating weight* 125.1 US t
Engine
Liebherr D 846 A7
In-line 6 cylinder diesel engine
350 kW (469 hp) at 1900 rpm
Rotary
Max. torque 265,500 lbf-ft
Kelly winch
Line pull 67,450 lbf
Rope crowd system
Crowd force 90,000 lbf
Travel of sledge 60.7 ft
Kelly operation
Max. drilling diameter** 6.6 ft
Max. drilling depth 197 ft
LB 24
LB_2008_englisch_usa.indd 1 28.02.2008 10:26:56