Construction of Mechanical Steel Shear

Mechanical Steel Shear pre-assembly at Galbiati Group workshop. The blades are actuated by the coordinated rotation of two eccentric shafts, driven by two independent gear trains, each one powered by 900 kW electric motors at 1000 rpm. Total weight: more than 650 ton.

After pre-assembly and test at Galbiati Group workshop, the entire mechanical steel shear was dismantled in sub-assemblies and transported by sea to its final destination in India. On site, it was reassembled by qualified personnel and immediately entered production, to the complete satisfaction of the local engineers.

The image below shows a detail of the preliminary assembly phase and tooth contact pattern check on the eccentric shaft coordinated rotation gear trains. Take special note of the oil film bearings and the thrust bearings, sized to support the enormous peak loads during the cutting phase.

The image shows machining of the welded steel lower frame on a 120-ton rotating table CNC boringmachine.