ID Centrifugal Ventilation Fans Backward Curved Impeller Belt Driven

This series of centrifugal fans has high efficiency, low noise and stable performance curve. Mainly used for indoor ventilation, dehumidification and dust removal, etc. in factories and mines, stadiums, opera houses, basements, large and small hotels, restaurants, shopping malls and large buildings. It can also be used as a gas recycler with other types of machinery.

Feature: high efficiency, low noise, low energy consumption, durable anti-corrosion and easy maintenance.
Widely used in hotel, office building, market, laboratory, hospital, exhibition ventilation system, tunnels, thermal power plants, factories and other buildings.
Excellent high temperature performance: Fan tested in accordance with GB-T13274-91 test free code standards.
Wide range of applications: According to the different requirements of senior civil
construction, the use of variable speed or multi-speed drive mode.

Impeller passed high standard dynamic balancing, ensuring stable running of fan.
Running test and vibration value test for fans after finishing manufacturing, ensuring running reliably.
Impeller of annealing treatment, completely eliminating structure of internal stress when welding, ensuring impeller appearance won’t occur creepage and flaw.
The welding line of impeller and main shaft passed ultrasonic flaw detection, ensuring no defect of welding and materials, guarantee strength.
Can flexibly adjust fan’s volume and pressure in running by air damper. Can also adjust fan’s pressure and volume by changing the fan speed via matching variable frequency motor.
Regarding to material of impeller and main shaft, we will choose high strength carbon steel, low alloyed steel, High temperature resistant alloy steel, High temperature resistant high strength alloy steel according to different medium temperature and running speed, ensuring the impeller and main shaft keeping reliable strength in high temperature.
Using liquid lubricating oil, no need to open bearing housing when changing or filling lubricating oil.Easy to observe the lubricating oil’s quality and stock through inspection window on the bearing housing body.
Bearing housing adopt labyrinth type mechanical seal, unique design of spill prevention of inner, venthole design on top, commissure coated with sealing grease, completely eliminating bearing housing oil leak.

Centrifugal fan production process:

Case Show:

Henan Dajing Fan Technology Co., Ltd. is located in the hinterland city of the Central Plains and Pearl in the north of Henan Province-Xinxiang. Three thousand boulevards, choose one and follow from one; focus on one, great future! Since its inception, our company has been positioned to be the only quality standard based on customer satisfaction. Strictly implement various standards, focus on the field of ventilation, and committed to creating a good environment!

The company continuously exchanges with the Chinese general machinery industry department, accumulate rich technical experience, studies and absorbs the domestic and foreignadvanced manufacture technology of the same industry, uses the advanced CAD assistant design, develops and designs many kinds of low noise by oneself, new products with high wear resistance. The pursuit of science and technology and quality is endless.

Equipped with high-speed fiber laser cutting machine, CNC spinning machine, high-precision dynamic balancing machine, automatic on-site vibration balancer, comprehensive tester and other special equipment for fan manufacturing, and the introduction of international advanced 6 s management to ensure that every part of the excellence.

Our products are widely used in power plant, boiler, kiln, mine, metallurgy, petroleum, chemical industry, chemical fertilizer, cement, paper making, drying, breeding, environmental protection ,dust removal and so on.With anti-corrosion, explosion-proof, low noise, high temperature resistance, high wear resistant and other characteristics. In addition to standard models, we can also provide all kinds of non-standard models according to the needs of customers. The products are well-selling at home and abroad, and have been repeatedly praised.