All kinds of axial fan for The ice cream machine, booster fan duct, Electronically Commutated Motor ECQ produced by our company have reached the national standards. We adhere to the 'integrity as the fundamental, quality for survival, reputation win the market' business philosophy, to provide users with premium products and service, and is willing to sincerely cooperate with customers all over the world! We constantly practice diligent and pragmatic entrepreneurial spirit. We provide customers with high-quality and most valuable professional products and services, and win their understanding, respect and support with sincerity and strength. Welcome new and old customers to visit and guide our company. Our excellent product development capability is the guarantee of our business strategy and future success.
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.
Forward centrifugal blowers always require scroll housing, which is open on one side. The characteristic features of this product series are high efficiency, a low noise level, relatively small air flow with a high increase in static pressure, robust design and space-saving application.
(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
| Model | V | Frequency | Current | Input Power | Speed | PA | Max Air Flow | Capacitor | Noise | Curve |
YWFF4E225 | 230 | 50 | 2.3 | 0.48 | 1350 | 0 | 1800 | 8 | 74 | ① |
YWFF4D225 | 230△/400Y | 50 | 1.44/0.85 | 0.44 | 1350 | 0 | 1800 | / | 74 | ② |
YWFF6E225 | 230 | 50 | 1 | 0.23 | 930 | 0 | 1300 | 6 | 60 | ③ |
YWFF6D225 | 230△/400Y | 50 | 1.35/0.8 | 0.24 | 930 | 0 | 1300 | / | 60 | ④ |


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
Deliver and serving
(1)Deliver
About 30-40 days after receive client’s payment. Because we are manufacturer, and we don’t have production in stock. We will arrange production as soon as possible.
(2)Service
①Pre-sales services:
We have Personalized Customization Scheme for every client.
We will adjust the voltage, frequency, length of line and other detail character according to client’s demand.
②After-sales services
According to the requirements of consumers, carry out the technical guidance on the use and other aspects
Dealing with customers' letters, visits and telephone complaints, answering customers' inquiries. At the same time, we will use various ways to collect the opinions of consumers on the quality of products, and improve them in time according to the situation.
warranty: one year after ETD.
We will provide customers with high quality and low price Single/Double Inlet Hardox Steel Centrifugal Blower Fan for Oil Refinery with newer, higher and better standards. We have achieved rapid development in recent years, which is mainly due to the development ideas of 'people-oriented, technological innovation' and strong technical support. We uphold the development concept of "design first, industry intensive", create a humanistic office environment, and give employees a good development platform.
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