Performance comparison between inner rotor fans and outer rotor fans

What are the performances of the inner rotor fan and the outer rotor fan like? If you want to know, just take a look at what the relevant people have to say: 1. Efficiency and Cost: Due to its mature technology and low production threshold, the internal rotor fan has a cost 20% to 30% lower than the external rotor fan. However, the external rotor fan has better air volume stability in high-pressure scenarios. Second, maintenance convenience: The maintenance of the inner rotor fan motor requires disassembling the casing, which incurs relatively high maintenance costs. The modular design of the external rotor fan supports quick replacement. Suggestions for selection: In the civilian field, internal rotor fans (such as household air purifiers) are preferred, while in industrial high-temperature environments, external rotor solutions are more inclined.