Hot strip mill gets gearbox upgrade

The service package included the online measurement and adjustment of the gearboxes on both sides of the slab sizing press, disassembly, offline inspection and testing, and the replacement of the bearings on the input and output shafts, all conducted during the mill’s planned annual overhaul for 2025. 

As one of the key projects in Baosteel’s maintenance campaign, SMS delivered end-to-end support from initial technical consultation and meticulous planning to on-site installation guidance and commissioning. The team’s commitment to excellence ensured accurate disassembly and reassembly, comprehensive inspections of key components, including housing deformation and wear analyses, gear flank testing, and dynamic balance verification of synchronizing shafts. These detailed evaluations enabled a full assessment of the condition of the gearboxes and provided vital data for Baosteel’s long-term maintenance strategy.

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