We strive to grasp the industry and industry development trend, assiduously improve our inline duct booster fan6 inch inline fan, Axial Fan For Condensing Unit, ec duct fan. We not only supply good products but also long-term service and friendship.The most of our products are exported to the overseas markets for good quality, competitive price and super-service. In the future, our company will continue to improve the production process and improve the management system with high standards. We believe that the foundation of the company's growth comes from talents, and firmly believe that employees are the most valuable assets of the enterprise. We adopt advanced production equipment and technology, and perfect testing equipment and methods to ensure our product quality.
The diameter of Impeller | 140mm | |
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 | Voltage | Frequency | Current | Input Power | Speed | MaxAir Flow | Capacitor | Noise | Curve |
YWFF2E140 | 115 | 50/60 | 1.45/1.85 | 165/210 | 2400 | 470 | 16 | 72 | ① |
230 | 50/60 | 0.72/0.92 | 165/120 | 2400 | 470 | 4 | 72 | ||
YWFF2E140L | 230 | 50 | 0.45 | 100 | 1500 | 360 | 3 | 68 | 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

Company profile
Founded in 1980, Ningbo lionball Ventilation Co., Ltd. is a key high-tech enterprise of the National Torch Program, which integrates product research and development, manufacturing and sales.Our company has passed ISO9001 quality management system certification and ISO14001 environmental management system certification.
"Lionball" brand after 40 years of precipitation, was awarded as a well-known trademark in Zhejiang Province.Our fan and motor products in the international industry has a high reputation and good reputation.Products are exported to the United States, Germany, Italy and other European and American countries as well as Brazil, Russia, other emerging industrial countries and other parts of the world.The main partners are Emerson, Panasonic and other world top 500 industry famous companies.The main products have passed the German VDE, the United States UL, Europe CE and RoHS and China CCC certification.
Lionball Team






We warmly welcome our regular and new clients to join us for 250mm High Performance for Bake Oven Single Inlet Forward Curve Centrifugal Fan Blower. The company's tenet is integrity, mutual benefit, quality-oriented, and customer first. With good business reputation, perfect service and profound technical strength, we have not only formed our own comprehensive advantages in the domestic market, but also successfully expanded to the international market.
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