The lifespan of an electromagnetic induction heater depends on various factors, including the design quality of the equipment, manufacturing process, operating environment, maintenance, and usage methods. Therefore, it is difficult to provide an accurate lifespan, but the following factors may affect the lifespan of electromagnetic induction heaters:

1. Quality and Manufacturing: High quality electromagnetic induction heaters typically use advanced materials and manufacturing processes, which may have a longer lifespan. The reputation and experience of manufacturers are also important factors.

2. Usage environment: The lifespan of the heater may vary under different environmental conditions. For example, if the equipment is frequently exposed to high temperature, humidity, or corrosive environments, its lifespan may be affected.

3. Working cycle and load: The frequency and working cycle of the heater have an impact on its lifespan. Long term high load operation may lead to faster equipment wear and tear.

4. Maintenance: Regular maintenance can extend the lifespan of electromagnetic induction heaters. Cleaning the cooling system, inspecting circuits, and maintaining the good condition of electrical components are all important maintenance steps.

5. Operation mode: Reasonable operation mode and control system design can reduce equipment wear and prolong its lifespan. Excessive overload, frequent switching, and other adverse operations may affect the lifespan of the equipment.

6. Technological updates: The continuous development of technology may lead to a new generation of electromagnetic induction heaters becoming more efficient and durable. In some cases, updating equipment may be a means to improve efficiency and lifespan.

Generally speaking, electromagnetic induction heaters that are used reasonably and regularly maintained can maintain stable operation for a long period of time. However, timely maintenance and replacement of components are also important measures to ensure the lifespan of equipment in the event of malfunctions or performance degradation. Ultimately, the specific lifespan also needs to refer to the technical specifications and usage instructions provided by the manufacturer.