Simple ergonomic handling
The smart Demag SafeControl system enables independent mo
The V-type crane revolutionises load handling.
For its new heavy-load bay, the plant engineering company SMS Meer developed an intralogistics concept for the handling and in-house transport of components that weigh up to 180 tonnes. To meet these requirements, we supplied five overhead and wall-travelling cranes that were installed on three operating levels.
The logistics concept developed for the heavy-load bay includes supply of the unfinished parts and removal of the assembled installation elements by heavy-lift units to the ends of the bay, as well as the in-house material flow with cranes.
SMS Meer already involved us in planning the cranes at an early stage. This enabled any optimum design of the interfaces to be defined and achieved. The result is an integrated intralogistics solution on three levels which exactly meets the requirements for handling the different loads during the various steps in the process.
SMS Meer is a part of the SMS Group, a world market leader in the construction of plant and machinery for the industrial processing of steel, aluminium and non-ferrous metals. SMS Meer was established as a machine factory in 1872 and is now a full-range supplier in the metal forming sector.
The new building complex at SMS Meer interfaces direct with the existing buildings. Measuring 181 metres in length and 24 metres wide, the heavy-load bay offers sufficient space for the machining centres and assembly stations.
A Demag process crane fitted with two Multi-Purpose Winch (MPW) units is used to transport the heavy loads on a runway installed at a height of 14.15 m. The crane primarily serves a gantry milling centre, where SMS Meer machines unfinished parts. The two open winch units have load capacities of 180 t and 90 t and operate at variable speeds that depend on the load. For handling particularly large components, the two MPW open winch units can also be employed in tandem. The compact design of the crabs enable them to approach each other with a hook centre distance of 3.05 m.
To avoid any collisions between the crane installation and the gantry milling machine, sensors continuously measure the distance between the crane girder and the carriage of the milling machine. At distances of less than six metres, the crane travel speed is automatically reduced and a warning message appears on the operating panel of the milling machine. At a distance of three metres, crane travel is brought to a standstill.
On the second crane runway level, two standard overhead travelling cranes operate over the entire length of the bay. The first crane is fitted with an EKDR-Pro monorail travelling hoist and has a load capacity of 10 t. The second one is a double-girder overhead travelling crane which is equipped with a main hoist for loads weighing up to 32.5 tonnes and a 10 t auxiliary hoist unit. A hook centre distance of just 1,288 mm was achieved by installing both hoist units on one crab.
Two identical wall-mounted travelling cranes fitted with 5-tonne DR-Pro rope hoists operate on a 98 m-long crane runway along one side of the bay. They are used to transport material to the individual workstations. In addition, they are employed for positioning tasks at the assembly stations.
*) Jib length
Material flow concept with Demag cranes operating on three levels.
Optimum utilisation of space thanks to reduced travelling hoist approach dimensions.
Process crane equipped with two hoist units for transporting workpieces to the machining centre.
Compact dimensions: hoist units arranged on the crab for turning workpieces.
Standard crane with two hoist units on one crab for turning workpieces.
Compact arrangement of the hoist units with 32 and 12.5 t load capacity on one crab.
Two identical wall-mounted travelling cranes fitted with 5 t DR-Pro rope hoists operating on a 98 m-long crane runway along the side of the bay.
Safety and ergonomics: wall-mounted travelling cranes provide support at the assembly stations.
Crane installations specially designed for mechanical engineering and automotive industry applications
Mobile workplace units
Genuine parts for unsurpassed reliability and long service life.