Our company pays attention to basic management, product quality is stable, and constantly improves pre-sales, in-sales and after-sales services to improve the market competitiveness of Centrifugal Wood Stove Fan Blowers, 4 inch exhaust fan, Roof Mounted Axial Fan. Our company has always been flexible and we are open to different opportunities and situations. We are very proud of the true and stable quality of our products. We have our own factory and cooperate closely to ensure high quality from the source. Our company is committed to building a people-oriented, integrity, innovation as the core content of the corporate culture, follow the 'professional' service concept and 'integrity' business philosophy.
Production description
The diameter of Impeller | 560mm | |
Material | Impeller | PA plastic 66, fibre glass-reinforced |
Rotor | Coated in black plastic | |
Direction of rotation | Clockwise, seen on rotor | |
Counter-Clockwise, seen on rotor | ||
Type of protection | IP44 or 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 | Design with thermal overload protector | |
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 | Voltage | Frequency | Current | Input Power | Speed | Max Air Flow | Capacitor | Noise |
YWFB4D560 | 400Y | 50 | 2.95 | 1800 | 1380 | 10250 | 85 | ① |
YWFB6D560 | 400Y | 50 | 1.4 | 620 | 920 | 7300 | 72 | ② |
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
Difference between forward centrifugal fan
(1)efficiency: the efficiency of the forward leaning centrifugal fan is lower than that of the backward leaning centrifugal fan.
(2)energy consumption: because the efficiency of the forward leaning centrifugal fan is low, its natural consumption for electric energy is greater than that of the backward leaning type.
(3)noise: when the forward leaning centrifugal fan is in operation, the noise emitted by the forward leaning centrifugal fan is larger than that of the backward leaning fan.
Through a long-term development, our Yb3-80m1-2 380V 2/4/6/8 Poles Yb3 Aluminum Housing 3phase AC Ex Induction Motor with CE Explosion-Proof Certificate for Pump and Mining Industry IP55 Exdiibt4 has being the best-selling in domestic and abroad obtained numerous of merchants'approvals and faith. We gain trust with quality, enhance value with brand, and win favor with service. Every customer's demand is the direction of our development. We are willing to become a trusted and long-term partner with you. We have solved many difficult problems for our customers with professional industry knowledge. In the fierce market competition, we have gradually established our own brand advantage and our market share is rising.
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