Our company focuses on quality assurance and after-sales service, and strives to build the high quality DC Centrifugal Direct Drive Fan, energy efficient motors, marine axial fan brand to serve our customers. Our company relies on a strong technology development system, market-oriented, in line with the concept of serving users and common development. Those with professional technology and key resources are the key factors to form the core competitiveness of our company. We review the current situation, actively explore new development paths, innovate profit models, and always insist on becoming stronger and growing together with customers. We shorten the delivery time through the establishment of adequate inventory and enrich the technical team to provide customers with more thoughtful technical services and try our best to reduce production costs for customers.
The diameter of Inlet | 150mm | |
Material | Housing | galvanized sheet steel |
Impeller | galvanized sheet steel | |
Rotor | Coated in black plastic | |
Direction of rotation | Clockwise, seen on rotor | |
Counter-Clockwise, seen on rotor | ||
Type of protection | IP54 | |
Insulation class | Class B or Class F | |
Mounting position | Shaft horizontal or rotor on bottom; rotor on top on request(Any) | |
Condensate discharges | Rotor-side | |
Approvals | CE, CCC,UL and so on | |
Mode of operation | Continuous operation(S1) | |
Bearings | Maintenance- free ball bearings | |
Motor protection | TOP wired internally | |
Cable exit | variable, lateral | |
Ambient temperature | -20℃ to 60℃ | |
Advantage | YWF series centrifugal fan with external motor has features of compact structure,convenient installation, credible running, little noise, energy saving and high efficiency. | |
Performance parameters
| Model | V | Frequenc HZ | Current | Input Power | Speed | Max Air Flow | Capacitor | Noise | Curve |
YWFF2E150 | 230 | 50/60 | 0.7/1.0 | 190/240 | 2300/2200 | 550/530 | 5 | 65 | ①② |


Product feature and application
(1) Product feature:
●Compact structure
●Specialized design
●Refined process control
●Simple Installation
●High efficiency and low noise
●Long service life
(2)Application
●Condenser
●Evaporator
●Pipe fan
●Roof ventilator
●Heat dissipation and ventilation
Production details

The Research and Development Center
The Research and development center of Ningbo Lionball Ventilator Co., Ltd is a national R&D center. It is appraised as High-tech Enterprises and Engineering Technology Center and has obtained many important prizes in the provincial projects.
Research and development center currently has 25 staff members. We introduced Germanic technology and employed a well-paid fan expert as our technical adviser. What is more, we have cooperated with international renowned enterprise EMERSON for about 5 years and will hand in hand with Carrier China.
Research and development center are facilitated with modern equipment and advanced laboratories: Air flow laboratory and life testing laboratory. We provide each member with professional inspection equipment for better research environment.
Over the past two years, owing to continuous effort of R&D team, we have successively obtained 15 certificates of Utility Model patent and 2 certificates of Invention Patents.
(1)Our Certificates of Utility Model Patent





(2)Certificates of Invention Patent

In the future, we will consistently provide customers with first-class Industrial Centrifugal Blower Fan for Hydrogenation Unit and services. We gradually expand our share of business and win public recognition with our strict quality commitment and integrity in maintaining our brand. In order to maintain the interests of consumers, we pay more attention to the transparency and reasonableness of the selling price of our products.
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