Liebherr LB 44 - Manual (Page 12)

12 Rotary drilling tools
Core barrels CB-WB
with weld-on blocks
Technical data
D NL GL Weight
[mm] [mm] [mm] [kg]
520 1200 1850 550
650 1200 1850 590
780 1200 1850 780
900 1200 1850 850
980 1200 1850 900
1080 1200 1850 1010
1200 1200 1850 1200
1390 1200 1850 1400
1680 1200 1850 1500
1850 1200 1850 1700
Features
• VK 200 Kelly box made of heat-treated cast steel with
two locking pins D 60 mm.
• Cutting ring with WB 90/35 weld-on blocks.
• Cutting width approx. 35 mm.
Application
Core barrels are used to cut an annular space. The remaining
centre core is subsequently broken up and removed using a
rock auger.
• Solid rock up to 100 Mpa.
• Slightly reinforced concrete.
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