We hope that customers can give us feedback on your thoughts and feelings of use, which can prompt us to improve our Unit Bearing Motors, inline bathroom exhaust fan, Backward Curved Centrifugal Fan, so as to become the cornerstone of our long-term development. All our employees are eagerly looking forward to providing you with high-quality and thoughtful service, and winning your trust and praise with excellent technology and enthusiastic attitude. We should adhere to the integrity and law-abiding, truth-seeking and pragmatic code of conduct, and be honest and trustworthy. We have established a good mechanism to shorten the time for customers to select and compare one by one when purchasing the whole batch of products. 'Quality improvement, quality creates value, honesty and integrity based on the world' is our eternal commitment.
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 continue to improve quality management to provide consumers with better quality Aluminum Alloy Medium Pressure AC Centrifugal Fans and Blowers and services. We firmly believe that only hard work can win the trust of customers, and diligence is reflected in all work activities that create value for customers, as well as the efforts made to enrich and improve ourselves in the process of work. President of our company, with whole staff, welcomes all buyers to visit our company and inspect.
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