When the factory shed structure is not strong
enough to bear the load of heavy duty cranes,
ElectroMech shows a smart way out.
Walchandnagar Industries Ltd. (WIL) is an Indian company with a legacy of over 100 years and strong global presence. WIL is a reputed name in the manufacture of critical equipment for a wide spectrum of industries/applications such as aerospace, cement, power, nuclear, defence, missiles, foundries, automotive, sugar and process equipment.
For their Missile Division, WIL required 150t cranes and approached ElectroMech to design a suitable solution for this critical material handling requirement. Safety and precision in handling were of utmost importance for this requirement. After analysing various aspects of the requirement, it was revealed that the factory structure was not strong enough to bear the load of 100t plus capacity cranes. Strengthening the existing structure to bear such loads was a very costly proposition and would have escalated the project budget considerably. Obviously then, the recommendation of conventional, double girder EOT cranes using truss supports was ruled out and essentially an alternate handling system was to be designed. While designing a new system, the tight space constraints were also to be taken into consideration.
ElectroMech’s design team analysed the situation and suggested use of completely customised gantry cranes of different capacities with sleek side supports moving on welldesigned, floor-mounted rails to ensure jerk-free movement. These rails are mounted on raised platforms which are precisely levelled. Since these cranes were to be used for manufacturing highly critical defence equipment, it was necessary for the crane operations to be jerk-free, fail-safe and precise. This is a unique case where specially designed gantry cranes are being installed for an indoor application. Critical care was taken while designing the support structure of the cranes as they are expected to safely handle a load of up to 150t and at the same time remain sleek and light. The cranes are now being used regularly during the manufacturing of several important defence and aerospace related equipment.
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