The advent of Industry 4.0 marks a significant transformation in manufacturing processes, emphasizing digitalization, automation, and interconnectivity. This paper explores the optimization of smart manufacturing processes through the integration of 5Gdriven Internet of Things (IoT) solutions. By analyzing existing literature, case studies, and current applications, this research highlights the potential of 5G technology to enhance real-time data transmission, reduce latency, and improve operational efficiency in smart factories. The findings indicate that 5G IoT solutions can facilitate predictive maintenance, supply chain optimization, and enhanced production capabilities, ultimately leading to a more agile and responsive manufacturing environment.