China Wholesale IP55 Class Ec/AC 230V Ventilation Duct Blower Fan for Cooling Fan with CE Mini Axial Fan 250mm
YWF series external rotor fan is a new product developed by our company after repeated research and trial production by combining the advantages of technology and talents from many domestic universities. Compared with the conventional axial flow fan, the fan has the advantages of high efficiency, low noise, low vibration, compact structure, beautiful appearance, and the impeller is directly fixed on the outer circle, which makes the axial dimension shorter. A breakthrough has reached the international advanced level.
Due to high efficiency, low noise, low vibration and short axial dimension, this series of fans can replace conventional axial fans, and can also be used in kitchens, bathrooms, industrial and mining and other occasions where oil, smoke and dust are serious.
Overall & Installation dimensions
Technical data
| Model |
Rated voltage (V) |
Frenquency ( Hz) |
Current (A) |
Input power (W) |
Highest speed(r/min) |
Volume (m3/h) |
Pressure (Pa) |
Noise db (A) |
| YWF2E-250 |
220 |
50 |
0.53 |
115 |
2550 |
1800 |
190 |
65 |
The external rotor axial flow fan has the characteristics of compact structure, convenient installation, reliable operation, low noise, energy saving and high efficiency. The products are widely used in hotels, restaurants, industrial and mining enterprises, office buildings, theaters and other building facilities, as ancillary equipment for freezers and cold storage or for ventilation and heat dissipation. (For example, it is matched with refrigeration equipment or facilities such as supermarket freezers, ice machines, air coolers, chillers, condensing units, etc., and used with dehumidifiers, evaporators, side wall fans, fire fans, central air-conditioning fans and other equipment).
The outer rotor axial flow fan is composed of fan blades, outer rotor motor, net cover, lead wire and other parts. The structure of the fan is calculated by structural finite element, and the strength check, modal analysis, harmonic response analysis and other methods are carried out to ensure that our products have the advantages of stable and reliable structure, high safety factor, small vibration, and strong anti-interference ability! According to customer requirements, Thermal protectors, junction boxes and other components can be installed, or different installation methods such as cylinder type and box type can be selected. The blades are designed according to the principles of aerodynamics, acoustic principles and acoustic performance requirements. They are twisted according to certain rules from the tip to the root. The material is made of high-quality steel or plastic. After dynamic balance verification, it has good starting performance, stable operation and low noise.
Product details
Zhejiang Jiayi Electric & Machinery Co., Ltd is a manufacturer specializing in the product of ventilation equipments. Since established in 2003, it has always been characterized with advanced input starting point, high-level talents, high-grade products, as well as the purpose of "zero defects" aim in manufacturing and the management philosophy of the quality of all products up to specification. In 2007, the company passed the international quality assessment of ISO9001: 2000 as well as the certificates of CCC and CE. After nearly a decade of effort, the company developed from a small processing enterprise, gradually become an integrated manufacturing enterprise providing with a set of services including independent R& D, production and installation. Meanwhile it has gathered a large number of skilled professional staff and had a first-class production equipment and technology, and now its products sell well all of the country and some all the world.
Based on the advanced production technology and perfect management mechanism. The company, with good quality and faith as its business fundamental, has always aimed at the production of ventilation facilities with high quality and performance-and-price ratio. At present, it has three ventilation equipment brands of "ZGLJF", "JIAYI" and "RUIDING" with the serial products such as axial-flow fans, centrifugal fans, boiler draught fans, oblique-fans, mixed-flow fans, exhaust fans, air-blowers and electric motors of Y series and so on. Recently, it has introduced a newly developed anti-oil-moisture fan series and fan-adjustable axial-flow fan series as well as sprinkling fans and spray fans.
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