Liebherr LB 44 - Manual (Page 11)

Rotary drilling tools 11
Rock drilling buckets BU-RSC
single-start/double-start
Technical data
D NL GL Weight
[mm] [mm] [mm] [kg]
520 1500 2550 550
650 1500 2550 800
780 1500 2550 1100
900 1500 2550 1250
980 1500 2550 1750
1080 1500 2550 2000
1200 1500 2550 2700
1390 1500 2550 3300
1680 1500 2550 3900
1850 1500 2550 4500
Features
• VK 200 Kelly box made of heat-treated cast steel with
two locking pins D 60 mm.
• Hinged swivel bottom gate with quick lock. The bottom
gate can be opened manually or mechanically via a spring
loaded pin.
• A ventilation pipe prevents the formation of a vacuum during
extraction.
• Single-start up to a diameter of 1200 mm.
• Fitted with exchangeable RSC 19 round shank chisels and
rock pilot.
Application
Drilling bucket for platy, fi ssured and compact rock of medium
cohesiveness. For loose soils, also compact sand and gravel
as well as cohesive soils.
Ø Casing
[mm]
620/540
750/670
880/800
1000/920
1080/1000
1180/1100
1300/1220
1500/1420
1800/1720
2000/1910
Other cutting diameters and effective lengths available on request.
GL
NL
D