Since establishment, our company has been focusing on the field of circulan inline duct fan, ECQ Electronically Commutated Motor, inline centrifugal fan, with strong R&D capabilities and rich strategic experience. We firmly believe that a good competitive atmosphere is the catalyst for the continuous innovation of our company. We firmly believe that extremely high product cost performance is the foundation of the company's sustainable development. Our company has been taken the global market development as the guidance, taken strengthen the reform of production technology as a guarantee and continuously enhanced the comprehensive strength to win competition for the development strategy. In line with the purpose of scientific and technological innovation, focusing on products, applying to life and serving the society wholeheartedly, the company integrates research and development, production and sales with our leading technical level in the industry.
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.
Relying on the scientific research team and technical level, our company provides customers with the design and manufacture of Refrigerator Spare Parts Shaded Pole Fan Motor Evaporator Fan Motor Is-3210snpsa, as well as solving technical problems. Honesty is the rule of evergreen. Operating with integrity and management with integrity, we sincerely provide customers with high-quality products and services, sincerely affirm and give back to employees, enhance brand image, and establish the concept of integrity management. In order to meet the growing needs of more customers, in the face of product diversification, we continue to study higher production level and quality, constantly enrich and improve ourselves.
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