Ecological Economic Centrifugal Industrial Dry Air Coolers

We are recognized by the industry for our integrity, our strength and excellent quality of the Refrigeration Unit Bearing Motor, UL Approval Steel Type Circular Duct Fan CDF Serie, In Line Centrifugal Fan, as well as praise from customers and friends all over the world. We keep pace with the times, forge ahead, and will use our actions to make friendly and lasting business cooperation with you. The company has always been implementing technological innovation, winning by quality, serving the society and returning to nature's business philosophy; with the marketing concept of seeking the market with integrity, and striving to satisfy customers.

Production description
Single Inlet Forward Centrifugal fans and blowers are compact units that can be used to either pressurize or evacuate in air moving applications. The impellers are permanently mounted to the external rotors for ease of installation and maintenance-free operation. These units may be mounted in any orientation to provide maximum airflow in minimum areas.

(1)YWF External Rotor Centrifugal Fans are divided into forward centrifugal fan and backward centrifugal fan according to curved blades, which have compact structure, convenient installation, credible running, little noise, energy saving and high efficiency.
(2) Several speed ranks, adapt to both frequency conversion and voltage transformation speed changing active. Our products are widely used in duct fans, roof ventilator, air purifying equipment, air conditioning, and household appliances, etc.
(3)The voltage of the single phase motor is 220V, 50/60 Hz, and the voltage of three phase motors is 380V, 50/60Hz. We can also supply other fan motors with different voltages and frequencies according to clients' requirement.
(4)The safety grade of this series is IP54, and the insulation classes are class B and class F.
(5) The applicable ambient temperature of the fan motors used in condenser is from -30℃~60℃.
(6)The average service life of motors is over 30,000 hours.
(8) Our products have gotten UL approval, CE approval and CCC approval.
(9) Product Features
① —Material: Housing: galvanized sheet steel
Impeller: galvanized sheet steel
Rotor: Coated in black plastic
② Bearings: Maintenance- free ball bearings
③ Direction of rotation: Clockwise, seen on rotor
④All models have reached UL approval, CE approval and CCC approval
⑤The type of protection is IP54. All models are fitted with an internal Thermal Overload Protection Device
⑥ Mounting position: Shaft horizontal or rotor on bottom; rotor on top on request (Any)
⑦Insulation class is class B or class F

Performance parameters

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 

Illustration of Models

YWF—F—2—E—200

①    ②  ③  ④  ⑤

①YWF: External Rotor Centrifugal Fan

②F: Forward

B: Backward

D: Double Inlet

③(2,4,6):Pole of Motor

④E: Single Phase Capacitor Operation

D: Three Phases Asynchronous Operation  

⑤200: The Diameter of inlet

The Research and Development Center

The Research and development center of Ningbo Lionball Ventilator Co., Ltd is a national R&D center. It is appraised as High-tech Enterprises and Engineering Technology Center and has obtained many important prizes in the provincial projects.

Research and development center currently has 25 staff members. We introduced Germanic technology and employed a well-paid fan expert as our technical adviser. What is more, we have cooperated with international renowned enterprise EMERSON for about 5 years and will hand in hand with Carrier China.

Research and development center are facilitated with modern equipment and advanced laboratories: Air flow laboratory and life testing laboratory. We provide each member with professional inspection equipment for better research environment.

Over the past two years, owing to continuous effort of R&D team, we have successively obtained 15 certificates of Utility Model patent and 2 certificates of Invention Patents.

(1)Our Certificates of Utility Model Patent

(2)Certificates of Invention Patent

We have modern machining equipment, complete testing methods, high-quality scientific and technological personnel, and rely on our professional level and mature experience in the field of Ecological Economic Centrifugal Industrial Dry Air Coolers to continuously provide customers with good products and services. We make our customers' service needs responded to in the first time and given full attention with our smile and sincere service attitude. Customer satisfaction is our eternal pursuit. Our company always adheres to the service concept of winning customers with quality and integrity, and unswervingly follows the road of brand development strategy.