Following the advanced fluid mechanics design principle, the air duct is unobstructed, the structure is reasonable, and after the impeller is corrected for dynamic and static balance, it has good performance and high energy efficiency, which is 20% more efficient than the standard fan. It can operate stably in high temperature environments up to 1660°F, and different heat-resistant stainless steel materials can be selected for different medium temperatures. Vibration value ≤2.5mm/s, stable operation.