The EC-B Flat-Top cranes
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The EC-B Flat-Top cranes. New ideas – new technology.

EC-B Flat-Top cranes. Connect and Work. The small and medium-sized EC-B cranes. Crane operators in medium-sized building projects can choose between nine small and medium-sized EC-B Flat-Top cranes. On these EC-B cranes, the compact head contains the hoist gear, slewing gear, the central switchgear and the complete slewing ring support. The trolley travel gear is housed in such a way in the jib pivot section as to make it easily and safely accessible straight from the compact head. Crane operators have the option of using the crane and all its functions with or without the cab. Liebherr...

The small and medium-sized EC-B cranes. These Liebherr cranes are characterised by their quick, easy assembly. The compact head is mounted by an auto crane in a single lift. All drive pedestals and rails are zinc-coated and designed to last. All drives are easy and safe to reach for maintenance work straight from the compact head. The newly designed comfort cab is attached and removed by means of quick-release fastenings and is identical for all small and medium-sized EC-B cranes. This cuts crane eet costs. The cranes are used in either 2-fall or 2/4-fall mode, or exclusively in 2-fall...

Quick assembly. 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 simplied by means of foldout 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...

Sophisticated assembly technology. An important feature of EC-B Flat-Top cranes is the emphasis placed on quick and easy assembly during their construction: exact positioning of the counter-jib guying system, preset lifting tabs for the auto-crane hoist and slots for the jib and counter-jib connections. New quick-release fastenings also make pinning the jib and counter-jib considerably easier. The counterweights for EC-B cranes of up to 130 mt are all identical. Having reduced the weight of individual package units, small, cost-effective mobile cranes can be used for assembly. Simultaneous...

Crane operation with cab or without: You choose. Crane operators have the choice between operating the crane with all its functions with the cab or without. The wiring is plugged in in just a few moves. The new cab, mounted outside the tower with quick-release fastenings, is the same for cranes of type 50 EC-B 5 to 130 EC-B 6 and can thus be tted to any EC-B crane in this size category. These cranes can easily be operated using radio remote control too, with acknowledgement of the crane parameters. An electronic monitoring system (EMS) is available as an option when equipping the FR.tronic...

The large EC-B cranes set standards on the market for Flat-Top cranes: the compact head forms a central unit which is mounted in a single lift. These cranes offer well-staggered working radii up to 75 m and maximum load capacities of up to 12 t. All drives are stepless. The large EC-B cranes are available exclusively in the Litronic version. Litronic cranes provide 20 % greater load capacities at the touch of a button. The Litronic control system incorporates the load-moment limitation system (LMB), the work-area limitation system (ABB) and the machine data analysis system (MDA). The...

The compact head. The central feature in the EC-B series is the newly developed compact head. The complete unit contains movable cab, switchgear cabinet, fold-out frame, slewing gear, slewing ring with slewing ring support and current collector. The electrics are soon connected by means of just a few plugs. Just one central switchgear cabinet is integrated into the compact head for the whole crane. Maintenance work is easy and safe to carry out. The compact head of the EC-B cranes leaves the factory completely pre-installed. The compact head can be transported in a standard truck and...

One lift from the truck and it’s up on the tower. With no intermediate hanging of the compact head, this central unit is hoisted onto the tower in a single lift. As soon as the compact head has been mounted onto the tower and the electric connection established, it can be slewed straight into the ideal assembly position. The compact head leaves the factory completely pre-installed. Assembly-friendly transport. For efcient transportation, the counter-jib is loaded using a piggyback system. Again, the rear part of the counter-jib is pinned directly to the rest of the counter-jib from in the...

The complete jib is pre-assembled on the ground. The jib sections are tight-welded to protect them from internal rust and corrosion. The new quick jib connection system: LiConnect. The jib sections are quickly and securely xed together using the new LiConnect quick jib connection system. Centring pins ensure a perfect and automatic centring of the lower chord. The transport position of the hook block is also new. On cranes of up to 130 mt, the hook block is now integrated into the jib pivot section for transport. Upon assembly, the hook block is released using a crank and reeving carried...

Connect and Work. 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...