90 EC-B 6 Liebherr crane - load chart, specs & dimensions (2005 - 2017)

Liebherr high-performance drive units

All drives used on the EC-B Flat-Top cranes were developed and even manufactured at the Liebherr Group’s own competence centre for drive technology in Biberach. These intelligent drives offer excellent operating safety and are uncompromisingly efficient. High-performance drive units from Liebherr lead to significant increases in material handling output. Whether one-speed or two-speed FC hoist gear, FC or EDC slewing gear or FC trolley travel gear, we have the right drive for every job.

The FC hoist gear

When selecting hoist gear drives, you have a choice between one-speed and two-speed frequency controlled high-performance drives. They come with different capacities depending on operations. The greatest advantages they offer include automatic load detection, micro-speed travel, use of the entire control-lever travel range and load retention without application of the hoist gear brake. The load is delicately positioned at the touch of a button. These drives make safe command and optimal control of the crane really easy.

The FC slewing gear

The FC slewing gear drives enable absolutely jolt- and jerk-free slewing at micro-speeds. Wind and load influences are all detected. Integrated anti-sway damping detects and compensates for crane overshoot and load swing. The integrated electrical wind release can be activated directly at the base of the tower. A completely new development is personalised slewing. The crane operator now has a choice between three different operating modes: rotational-speed control, torque control or a combination of the two.

The FC trolley travel gear

Liebherr FC trolley travel gear is known for its delicate, stepless travel. A cable storage area is integrated into the cable drum for short working radii. Liebherr trolley travel gear offers excellent performance ranges and high trolley travel speeds, especially under load.

EC-B Flat-Top cranes

Liebherr works consistently on developing modular systems for simple, practical and quick assembly and which take into account the relevant safety aspects. The customer benefits from many simplifications, such as the quick-connection system for jib and counter-jib, new LiConnect jib connection system, a removable, pin-down crane cab, pin magazines and electric plug connections to the drive units and switchgear. Even electronic function modules such as work-area limitation (ABB) and remote data transmission (DFÜ) follow a modular system and are easily extended. All assemblies come pre-installed. Connect and Work – Assembly simplifications for practical use. Only at Liebherr.

Completely new jib technology

The EC-B jib sections are tight-welded. Internal rust and corrosion don’t stand a chance. The EC-B crane LiConnect quick jib connection system has been designed from scratch and patented. With the help of LiConnect, the jib sections are quick, safe and easy to fasten in place. The complete jib is pre-assembled on the ground. The jib sections are tight-welded to protect them from internal rust and corrosion.

Connect and Work

Preassembly of the newly designed counter-jib is carried out in just a few manoeuvres on the ground. The rails have a fold-out design, meaning once unfolded all rails are fully attached. Assembly has also been simplified by means of fold-out assembly supports for use in positioning the counter-jib guying system. The guy rods are in the exact assembly position. The compact head is put in place by an auto crane in a single lift. This compact head is delivered pre-installed. Only a few plug connections are needed to complete the electric installation. Pin magazines are positioned within easy reach. As soon as the compact head has been positioned on the tower, it can be slewed into the perfect assembly line. Liebherr works consistently on developing simple, quick and safe assembly systems. Many new ideas and innovations have been incorporated as practical details in the crane design. Plug connections ensure a quick erection. Even the high-performance hoist gear is quickly assembled using plug connections. The new LiConnect quick-jib connection is patented and sets new standards. The pin magazines sit in just the right place, within easy reach. The crane cab itself can be taken on and off and is quickly installed with the help of electric plug connections. Many sophisticated details come together for quick assembly times.