In a steel‑making plant the hot‑metal furnace exhaust system relies on a large forced‑air fan to remove combustion gases and maintain a stable furnace atmosphere. The motor, equipped with an integrated gear reducer and an energy‑saving flow wheel, directly drives this fan at the required reduced speed while keeping the drive shaft aligned with the fan’s axis. The water‑contact components cool the bearings and gear teeth, allowing continuous operation under the high‑temperature, dust‑laden conditions typical of steel production. The phenolic‑resin housing protects the internal parts from corrosive fumes and mechanical wear, extending service intervals and minimizing downtime. By matching the motor’s output to the fan’s aerodynamic needs, the assembly enables precise control of exhaust flow, which is essential for temperature regulation, pollutant capture, and safe furnace operation. The same configuration is also found in slab‑cooling conveyors, where it powers cooling fans that lower strip temperatures before further processing. This integration of motor, gear reduction, and flow device makes the unit a key enabler for reliable air‑handling in steel‑industry exhaust and cooling lines.