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How to Extend the Service Life of Industrial Fans?

To extend the service life of on-site fans, the following four points should be strictly followed:

1. Listen:
During operation, monitor for abnormal noises, including friction sounds, impact noises, and surge sounds. If any unusual noise is detected, stop the fan immediately and carry out an inspection.

2. Measure:
Monitor the temperature of the bearing housing and motor during operation. The bearing housing temperature should not exceed 80°C, or should remain within 40°C above the ambient temperature.

3. Observe:
Pay attention to the operating current. It is recommended to keep the current at around 90% of the rated current. If the current is too high, check the duct system or inspect the fan for possible faults.

4. Check:
Inspect the oil level in the bearing housing. Check through the oil sight glass. The oil level should not exceed the red warning line on the oil window and should not be lower than half of the oil window. Both excessive and insufficient oil levels can affect the fan’s service life.

Customer Testimonials

Trusted by industrial partners across 30+ countries — real feedback from our global clients.

“We’ve been using Dajing’s 9-19 high-pressure centrifugal blowers for our dust removal system. The airflow performance is excellent, and the noise level is much lower than our previous models. Truly reliable quality.”

Ali Rahman Maintenance Engineer, Power Plant – UAE

“The 4-72 series blowers from Dajing have been running non-stop in our cement production line for two years with zero breakdowns. Their team provided fast delivery and technical guidance during installation.”

Sergey Ivanov Production Manager, Cement Factory – Kazakhstan

“Our HVAC contractor switched to Dajing’s products for a recent government building project. The energy efficiency and build quality exceeded expectations. Definitely a long-term partner.”

Mohamed Al-Farid HVAC Project Supervisor, Government Contractor – Saudi Arabia

“We ordered customized GY4-73 induced draft blowers for our boiler system. Dajing’s engineers adjusted the impeller size precisely to our parameters — performance and after-sales support were outstanding.”

Nguyen Thanh Binh Technical Director, Thermal Equipment Co. – Vietnam

FAQ's

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Our engineers will recommend the suitable blower type based on your air volume, pressure, temperature, and working conditions.
You can also send your technical parameters or drawings directly for evaluation.

All Dajing blowers are ISO9001 and ISO14001 certified.
Depending on customer needs, we can also provide CE, EAC, or other international compliance certificates.

Yes. We offer fully customized blower systems to meet special environmental or industrial requirements, including high-temperature, dust-removal, and corrosion-resistant designs.

Generally 7-15 working days after receiving the deposit, depending on the order quantity and customization level.

Yes. We provide online technical guidance, spare parts supply, and on-site service if required.
Our goal is to ensure your blower operates efficiently throughout its service life.