In today's era of rapid technological development, the update and replacement of electronic devices are becoming increasingly frequent. As the core component of electronic devices, the number of printed circuit boards (PCBS) is also constantly increasing. However, PCBS contain a large amount of harmful substances such as lead, mercury, and cadmium. If not properly handled, they will cause serious pollution to the environment. Therefore, the emergence of PCB recycling equipment is particularly important. It is like a green guardian, playing an irreplaceable role in promoting the development of the green electronics industry. PCB recycling equipment is a specialized device designed for the recycling and processing of PCBS. Through a series of processes and technologies, it separates harmful substances from PCBS and simultaneously recovers valuable metals and materials within them. These devices usually adopt a combination of physical, chemical and biological methods to achieve efficient and environmentally friendly recycling effects. The working principle of PCB recycling equipment mainly includes several steps such as crushing, sorting, extraction and refining. First, the discarded PCBS are crushed to turn them into smaller particles for subsequent sorting and extraction. Then, different types of metals and materials, such as copper, tin, nickel, etc., are separated through sorting equipment. Then, by means of chemical extraction or biological extraction and other methods, harmful substances such as lead and mercury in the PCB are extracted and subjected to specialized treatment and disposal. Finally, the recycled metals and materials are refined and processed to meet certain purity and quality standards for reuse. The application of PCB recycling equipment can not only reduce the pollution of electronic waste to the environment, but also achieve the recycling and utilization of resources, which has significant economic and environmental significance. On the one hand, by recycling valuable metals and materials from PCBS, the exploitation and consumption of natural resources can be reduced, production costs can be lowered, and at the same time, certain economic benefits can be brought to enterprises. On the other hand, effectively handling the harmful substances in PCBS prevents them from entering the soil, water sources and other environments, reduces the damage to the ecological environment, and protects human health and living environment. With the continuous improvement of people's environmental protection awareness, the market demand for PCB recycling equipment is also gradually increasing. At present, many enterprises at home and abroad have begun to research and produce PCB recycling equipment and have achieved certain results. These devices not only continuously innovate and improve in technology, but also have seen significant enhancements in performance and efficiency. Meanwhile, the government is also increasing its support for the PCB recycling industry, introducing a series of policies and regulations to encourage enterprises to engage in PCB recycling business and promote the development of the green electronics industry. However, the development of PCB recycling equipment still faces some challenges. For instance, the research and development as well as innovation of recycling technology require a significant investment of funds and human resources, and there are also certain technical difficulties and risks in the recycling process. In addition, the market size of the PCB recycling industry is relatively small, and the profitability of enterprises is also affected to a certain extent. Therefore, it is necessary for the government, enterprises and all sectors of society to make joint efforts to increase the research and development and promotion of PCB recycling equipment, improve the level and efficiency of recycling technology, and at the same time strengthen policy support and supervision for the PCB recycling industry to promote its healthy and sustainable development. In conclusion, PCB recycling equipment is an important tool for promoting the development of the green electronics industry. It can not only reduce the pollution of electronic waste to the environment and achieve the recycling and utilization of resources, but also bring economic benefits to enterprises and promote the sustainable development of the economy. It is believed that with the joint efforts of the government, enterprises and all sectors of society, PCB recycling equipment will be more widely applied and promoted, making greater contributions to building a beautiful Earth.