The company attaches great importance to the cultivation, introduction and use of talents, and has gathered a large number of leaders and elites with strategic vision, global vision and insight into the Centrifugal Fan, piped centeifugal fan, DC In Line Centrifugal Fan industry. We always adhere to the guiding ideology of science and technology work that science and technology supports development and innovation leads the future. We always practice the people-oriented guiding ideology, adhere to the business philosophy of honesty and credibility, and strive to provide meticulous after-sales service. While attaching importance to the development of the enterprise, our company has always paid attention to the construction of enterprise culture. Our employees have lived a full and meaningful life in the company. They have found their own value and development space while contributing to the company.
Production description
| The diameter of Impeller | 500mm | |
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 | Curve |
YWFB4E500 | 230 | 50 | 6.9 | 1560 | 1340 | 7680 | 42 | 82 | ① |
YWFB4D500 | 400Y | 50 | 2.68 | 1600 | 1360 | 8200 | / | 82 | ③ |
YWFB6D500 | 400Y | 50 | 1.3 | 470 | 910 | 5500 | / | 70 | ③ |


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
Protection details

FAQ
(1)Q: Are you a manufacture factory?
A: Yes,we are one of the leading manufacturers of fans and motors in China since 1980, Our factory occupied area of 26000square meters, located in Yinzhou district, Ningbo. We have more than 300 employees.
(2)Q: Which product certification do you have?
A: Our products are approved VDE certificate, UL certificate, CE certificate, ROHS certificate, CCC certificate, SASO certificate and so on.
(3)Q: How about our company's quality control system??
A: We have gotten IS09001:2008 certificate(SGS)
(4)Q: How long is the warranty of your products
A:One year after ETD
(5)Q:What kind of trade terms and payment terms?
A: Trade terms: EXW, FOB
B: Payment terms: T/T, L/C
Company profile
NINGBO LIONBALL VENTILATOR CO.,LTD. was established in 1980. Lionball is one of the key Hi-Tech enterprises of the National Torch Program and a production enterprise combining development,manufacturing and sales together.And our products exported to the United States, Germany, Italy and other European and American countries as well as Brazil, Russia, other emerging industrial countries all around the world.Major partners include EMERSON(EMERSON), PANASONIC (PANASONIC) and other famous companies in the global 500 industry.The main products have been approved by VDE, UL, CE and ROHS and CCC.
As an enterprise with 40 years of operation history and continuous development and progress, Ningbo Lionball Ventilator Co., Ltd. has established a good cooperative relationship with the global producer and distributors. We believe that our high-quality products, good service and excellent corporate reputation will bring us a win-win situation.
We have been committed to attracting and retaining world-class talents, producing high-quality Yjf610A-532 Shaded Pole Motor for Refrigeratior Parts, and the most important thing is to satisfy our customers. Maintaining a lasting relationship with customers is an important goal of our customer relationship management. We adhere to the enterprise development concept of quality pursuit of excellence, innovation driven development, reform led rejuvenation, striving to create brilliant.
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