LB 16 large rotary drilling rig
At the 2010 ‘Bauma’ Liebherr is introducing the LB 16 large rotary drilling rig, an additional model that rounds off its LB series. This series entered production only three years ago, and is now available in five sizes with torque ratings between 16 and 36 mt.

The LB series is an ideal adjunct to the existing Liebherr LRB range of combined piling and drilling rigs. The LB concept is derived from Liebherr’s many years of experience in deep foundation applications, and takes into account the toughest demands now placed on modern rotary drilling rigs. All LB models are special-purpose machines for demanding drilling tasks. They are suitable for a wide range of applications including Kelly, continuous flight auger or double rotary drilling, and for use with soil mixing equipment.

Operating weight
52 t
Max. torque
161 kNm
Engine output
180 kW
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Technical data drilling rig
(PDF file, 2.2 MB)
Performance and equipment features
The new LB 16 rotary drilling rig has compact dimensions and is therefore also ideal for use where space is limited. Its minimum gateway and transport width is only 2.5 m. It has a rated torque of 16 mt and is intended for a maximum drilling diameter of 1.5 m and drilling depths down to 34.5 m. For cased holes, a casing oscillator for diameters up to 1.2 m can be operated.

Unique technical features of the LB 16 are its robust leader design and exceptionally load-resistant kinematic layout with generous system width. They give this large drilling rig significantly higher stability and strength than other machines of similar size. Design and construction of the LB 16 prepare it for the most severe demands possibly to be encountered in practice. For the user, this not only means greater performance potential but also reduced wear, so that the operating life of the machine is automatically prolonged.

Rope crowd system
A notable technical advantage of the LB 16 is the rope crowd system, with a retraction force of 20 t. It offers the user maximum performance and reliability even under the toughest soil and operating conditions.
Versatility for increased efficiency, low-cost transport
The compact dimensions of this smallest member of the LB series of machines make it possible for the basic machine and the leader to be carried as a single unit. The overall length for transport purposes is only 15.5 m and the width 2.5 m. A folding leader-base option further reduces transport length to only 13.5 m. This speeds up and simplifies machine repositioning and makes work on the construction site more flexible. The LB 16 can also be carried with the rotary in position, without exceeding the transport width of 2.5 m; the weight is then in the region of 47.5 t.

If working height is limited, the LB 16 can be converted to operate with a shorter leader. Overall height is then 12.5 m. With a 3-fold Kelly bar in use, the machine can reach drilling depths of as much as 16.5 m.