LB 28-320 Drilling rig

The proven LB 28-320 drilling rig from Liebherr is used for the foundation of piles. Drilling with Kelly equipment, double rotary head and continuous flight auger are common methods. Among its main characteristics is the simple transport including folded leader as well as the wide working area thanks to the parallel kinematics. Additionally, the LB 28-320 has a robust leader which can easy handle high torques and great tractive forces of the rope crowed system. This ensures particularly fast operating cycles. At jobsite conditions with limited heights, such as under bridges or below power lines, the rig can be equipped with a shortened “low-head” leader.

Operating weight 98.7 t
Max. torque 320 kNm
Kelly drilling, max. drilling depth 70.0 m
Kelly drilling, max. drilling diameter 2,300 mm

Features

Easy transportation and quick set-up

Easy transportation and quick set-up

Basic machine and leader with all hydraulic hoses connected can be transported in one piece. The minimized assembly work allows for quick and easy transportation of the machine between jobsites. Hence, time and money is saved even before operation starts.

Innovative crane control

Innovative crane control

The crane control system offers a multitude of programme and control options for various drilling methods. Service and machine data is also provided on color displays. The operator thus benefits from a facilitated handling of the rig. Hence, quick working cycles are achieved.

Innovative rotary drive

Innovative rotary drive

The hydraulic BAT rotary drive designed by Liebherr delivers the required torque for a wide range of drilling applications. The automated torque adjustment and the continuous speed optimization react flexibly to changing soil conditions – this guarantees an optimum crowd force.

Designed for challenging jobs

Designed for challenging jobs

Drilling requires a robust and torsion resistant leader. Moreover, thanks to its unique parallel kinematics a large operating area is achieved, thus guaranteeing precise and solid working. The telescopic undercarriage and the long crawlers offer a high level of stability.

Powerful drive technology

Powerful drive technology

The Liebherr-own and fuel efficient diesel engine generates the required power. In combination with the on-board hydraulics a sufficient amount of performance for various deep foundation works is provided. When using further attachments like casing oscillators, no additional power pack is needed. more

High service availability

High service availability

A global service network with experienced technicians and fast access to spare parts ensure high machine availability and a long product service life.

Technical data

Operating weight 98.7 t
Max. torque 320 kNm
Max. winch line pull 300 kN
Max. crowd force 400 kN
Engine power 390 kW
Kelly drilling, max. drilling depth 70.0 m
Kelly drilling, max. drilling diameter 2,300 mm
Continuous flight auger drilling, max. drilling depth 25.8 m
Continuous flight auger drilling, max. drilling diameter 1,000 mm
Full displacement drilling, max. drilling depth 25.8 m
Full displacement drilling, max. drilling diameter 600 mm
Double rotary drilling, max. drilling depth 17.3 m
Double rotary drilling, max. drilling diameter 750 mm
Min. transport width 3,500 mm
Min. transport height 3,600 mm

Downloads

Technical data (USA) – LB 28-320 drilling rig

Technical data (USA) – LB 28-320 drilling rig

PDF (927.3 KB)
Overview LB series drilling rigs

Overview LB series drilling rigs

PDF (1.2 MB)
Overview LB series (USA) drilling rigs

Overview LB series (USA) drilling rigs

PDF (1.1 MB)
Customer service for duty cycle crawler cranes and deep foundation machines

Customer service for duty cycle crawler cranes and deep foundation machines

PDF (1.5 MB)
Job report LB 36-410 drilling rig

Job report LB 36-410 drilling rig

PDF (984.7 KB)
Fuel costs matter! Efficiency-enhancing engine features

Fuel costs matter! Efficiency-enhancing engine features

PDF (227.8 KB)
Hybrid Technology

Hybrid Technology

PDF (149.9 KB)
Concrete pump controlled from the Liebherr deep foundation machine

Concrete pump controlled from the Liebherr deep foundation machine

PDF (645.2 KB)
LiDAT – Data transmission and tracking system for crawler cranes and deep foundation machines

LiDAT – Data transmission and tracking system for crawler cranes and deep foundation machines

PDF (4.6 MB)
Process data recording PDE and process data reporting PDR

Process data recording PDE and process data reporting PDR

PDF (3.9 MB)
Rock drilling tools for Kelly drilling

Rock drilling tools for Kelly drilling

PDF (945.5 KB)
Rotary drilling tools for Kelly drilling

Rotary drilling tools for Kelly drilling

PDF (3.5 MB)
Core barrels for Kelly drilling

Core barrels for Kelly drilling

PDF (1.9 MB)
Casing oscillators

Casing oscillators

PDF (287.7 KB)
Image brochure for Liebherr rotary drilling rigs (LB series)

Image brochure for Liebherr rotary drilling rigs (LB series)

PDF (5.4 MB)

Optional equipment

Low-head leader system

Low-head leader system

On job site conditions with limited heights – such as under bridges or below power lines – the rig can be equipped with a short length leader.

Eco silent mode

Eco silent mode

With the eco silent mode the engine speed can be reduced to a predefined, required level. With this feature a notable reduction in diesel consumption can be achieved without any impact on operational output. Noise emissions are thus also lowered.

Automatic engine stop

Automatic engine stop

The machine can optionally be equipped with an automatic engine stop control. Thanks to this feature it automatically switches off during longer work breaks after evaluating several machine parameters. This is fuel saving and environmentally friendly.

Low-head leader system

Low-head leader system

The automatic casing drive adapter with remote control for locking and unlocking the casing pipe offers significant advantages in terms of safety as no personnel is exposed to the hazardous area. In addition faster production cycles can be achieved.

Fleet management and teleservice

Fleet management and teleservice

The data transmission and positioning system “LiDAT” provides important information on the operation of the machine. With these data the operation becomes more efficient. Various additional modules allow machine data reporting or access through service engineers via teleservice. more

Electronic evaluation of working processes

Electronic evaluation of working processes

With the PDE process data recording system machine data is recorded during the working process. With PDR these data can be managed, displayed tabularly or graphically, and analyzed. In combination with the telematics system LiDAT these reports can be easily generated from the office.

Casing oscillators

Casing oscillators

If required, Liebherr piling and rotary drilling rigs can be equipped with a number of casing oscillators which are operated via the machine’s on-board hydraulics. No external power pack is required which leads to significant cost savings.

Increase of drilling diameter and depth

Increase of drilling diameter and depth

When producing piles with very large drill diameter or depth the rig can be fitted with an optional equipment package, which includes a longer leader, additional ballast weight and extended drilling axles.

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