Liebherr LRB 155 - Manual (Page 7)

Equipment for kelly drilling
Technical data
LRB 155 7
Kelly drilling
Drilling drive I – torque 1 st gear 165,000 lbf ft
2 nd gear 82,000 lbf ft
Drilling drive I – speed 1 st gear 20 rpm
2 nd gear 40 rpm
Max. drilling diameter
with adapter
8.2 ft
Max. drilling diameter
without casing oscillator
7.2 ft
Max. drilling diameter
with casing oscillator
4.9 ft
Line pull kelly winch 36,000 lbf
Line speed kelly winch 0 –344 ft/min
С С
С
Transport dimensions Working dimensions
Kelly type L Weight L
1
R Drilling depth
ft lbs ft ft ft
3/24 31 9,700 79 30 72
3/28 36 11,700 92 25 85
3/32 41 14,600 105 20 98
4/65 57 19,800 213 3.2 207