We've got quite possibly the most state-of-the-art production gear, experienced and qualified engineers and workers, acknowledged top quality handle systems along with a friendly expert gross sales group pre/after-sales support for Refrigerator Fan Motor, cyclone booster fan, Centrifugal Fan. We integrate design, R&D, production, sales, and service, we also can customize products and provide complete solutions according to customer needs. We hope that every employee should rely on their own efforts and talents to strive for the opportunities provided by the company.
Production description
Backward Centrifugal blowers are used primarily for intake suction and do not require a scroll housing. They have high hydraulic efficiency.
Backward centrifugal impellers offer a quiet and compact air moving solution. The Permanent Split Capacitor (PSC) motors provide reduced operating costs and longer service life. Ball bearing construction allows multiple mounting options. Backward centrifugal impellers have low profiles that do not require an enclosure. Air is discharged 360° radially from the impeller wheel. These units operate very efficiently at high pressures.
| The diameter of Impeller | 225mm | |
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℃ | |
Performance parameters
Model | Voltage | Frequency | Current | Input Power | Speed | Max Air Flow | Capacitor | Noise | Curve |
YWFB2E225 | 230 | 50/60 | 0.42/0.55 | 92/135 | 2500/2700 | 970/1050 | 3 | 67/68 | ①② |
115 | 50/60 | 0.84/1.1 | 92/135 | 2500/2700 | 970/1050 | 12 | 67/68 | ||
YWFB2E225H | 115 | 60 | 1.7 | 200 | 2850 | 1340 | 18 | 69 | ③ |
YWFB4E225 | 230 | 50/60 | 0.23/0.25 | 50/58 | 1500/1700 | 550/620 | 2 | 52/55 | ④⑤ |
115 | 50/60 | 0.46/0.5 | 50/58 | 1500/1700 | 550/620 | 8 | 52/55 | ||
YWFB2E225P | 230 | 50/60 | 0.65/0.8 | 150/190 | 2600/2800 | 1100/1250 | 4 | 68/69 | ⑥⑦ |


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
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. Lionball has passed the certification of ISO9001 Quality Management System and ISO14001 environmental management system certification.
Lionball specializes in the production of external rotor axial fans, centrifugal fans, shaded pole motors, unit bearing motors, EC motors, sewing machine motors and medical centrifugal motors.Our products are widely used in ventilation, air-conditioning, refrigeration, medical treatment, fresh air, air purification, new energy, auto parts, appliances and other areas. Our company covers an area of 30,000 square meters and employs about 300 Chinese and foreign workers.After 40 years of history of precipitation, "Lionball" brand wins the “Famous Trademark” in Zhejiang Province."Lion ball" brand motors and "Lion ball" brand fans own great awareness and reputation on the international markets.
Lionball team






The company repays a large number of 230VAC 190 X 69mm Backward Curved Centrifugal Fan (C2E-190.45A) users with high-quality products, perfect after-sales services, and sophisticated technology. We will provide you with better and more appropriate technical solutions compared with peers, as well as advanced installation technology and perfect after-sales service. We will once again enhance our overall capabilities and greatly improve our ability and quality to serve our customers.
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