These are the last generation conventional cranes, with crane truck fast assembly.
They feature few components, whole factory assembled groups, without their own lifting equipments.
This modern configuration of traditional cranes is definitely more cost effective as for purchase, transportation, assembly, maintenance,
storing and, to put it simply, for the overall equipment management.
The range includes booms up to 70 mt.
In line with the planning choice to make the equipment simple and to cut down installation times and costs, highly resistant steel and very thick profiles have been used to keep down overall dimensions and weights. All couplings are wired; the base does not feature safety struts and is made of a cross vault with decomposable beams, with or
without shifting groups; tower elements are monolithic and have a section of 1.05 mt to 1.60 mt and are 12 mt long (or submultiples of this length); the jib has very reduced dimensions; the beam counterjib has a minimum length, it can be connected to the cusp and the cab to the rotating platform, while the possibility of separating components
remains, if necessary. This assembly is formed by a rotating plane with the outreach, on which the lifting winch and the carriage are placed, along with the rotation assembly, the electrical equipment, safety devices with fastened non-flying connections, a rational arrangement of their functions and an appropriate transmission for earth connection.
They are completely decomposable for transportation and assembly operations, they can be used at free height or anchored; in permanent location on a concrete plinth with zinc-plated frames, recoverable or on a truck; travelling on tracks, or rampant inside the building site; as gantry cranes for docks or store yards.
The cranes can rise without external lifting devices, after positioning the base, the first base element, the telescopic element and the outreach. The assembly is very simple, cost-effective, fast and safe.
It is secured by two rampant cross members inside the tower. An oil hydraulic piston between these two elements generates a balanced thrust without dangerous breakaways, according to its position in the middle of the tower, to the lack of mounting housing and to the use of semimonolithic tower elements. These elements are made of two L-shape
pieces, therefore they have excellent operating reactions and few wired joint and sewing couplings.
The CITY configuration and its structural solutions, if applicable, have positively affected the construction of these conventional machines, by using highly resistant steel and very thick profiles on the jib, in order to reduce overall dimensions and weights, by using a counterjib with minimum length beams, in order to reduce overall dimensions and outreach inertia; by assembling and installing main electromechanical assemblies on a rotating platform, without flying connections; by using the cross vault with decomposable beams, without safety struts for the smallest machines.
It is a brand-new generation of machines, focused on services, as well as performance, adapting them to the ever-changing needs of the building industry.