Product Application

Backward centrifugal fan is used in ventilation pipe dust removal, pipeline fans, air handling units, air purifier, environmental protection and pollution control and other ventilation and refrigeration equipment, low audio noise, suitable for noise sensitive applications.

Basic Information

Fan Type	AC Φ190-Φ250mm Plastic Backward Curved Centrifugal Fans
Blade/Net mesh Material	Plastic
Rotor Material	Cast Aluminium
Motor	AC 100% Copper Coil External Rotor Motor
Bearing	Ball Bearing
Protection Class	IP54
Insulation Class	F
Operating Temperature	-30℃ To +60℃
Useage	ndustrial refrigeration system, fresh air system, communication equipment radiator, small condensing unit, air purifier, air filter, industrial equipment heat dissipation, air conditioning ceiling machine and other equipment supporting use

Technical Parameters

Type	Diameter of Air Inlet(mm)	Voltage (V)	Frequency(HZ)	Input power (W)	Speed (Rpm)	Max Airflow (CMH)
YWFB-4E190	φ190	230	50	40	1380	380
YWFB-2E190	φ190	230	50	63	2550	550
YWFB-4E220-1	φ220	230	50	50	1400	644
YWFB-2E220-1	φ220	230	50	101	2550	1200
YWFB-4E220-2	φ220	230	50	55	1400	744
YWFB-2E220-2	φ220	230	50	115	2550	1350
YWFB-4E250	φ250	230	50	50	1380	830
YWFB-2E250	φ250	230	50	180	2600	1580

Company Profile

SHANGHAI WEIMA ELECTRIC EQUIPMENT CO., LTD was established in 2009 and is located in the internationally renowned and conveniently located, beautiful city of Shanghai.The company has strong technical force and advanced production equipment, has perfect quality assurance system and first-class testing equipment, is a professional production of various types of micro motor, (fan), outer rotor axial flow fan, pipeline axial flow fan, centrifugal fan, a variety of blower, a new air change machine ventilation, ventilation equipment. Enterprises through the ISO9001 quality management system certification, ISO14001 environmental management system certification, products through the CCC, CE certification, the outer rotor fan made in the national industrial products production license.

In the fierce market competition, enterprises rely on strict scientific management, reliable quality of products around the world to win the trust of our customers.We have first-class CNC machining equipment, with an annual production capacity of millions of units, and we have 15 years of experience in the research and development and production of fans and motors.During the processing of our products, strict quality inspections are carried out before leaving the factory. Welcome to call us for any custom fan or motor solution.

Packaging&Shipping：

Our products are usually packed in cardboard boxes with PE bags inside. We will pay attention to prevent collision, and the shipping mark can be made according to customer's requirements.

 Payment terms ,Delivery and Service：

Payment: All payments can be negotiated, usually by T/T or L/C at sight.

Delivery time: After receiving your payment, we will arrange production. We will ship the goods to your port of delivery as soon as possible.

Service: One year warranty, online technical service.

FAQ:

Q1:If there is no product size that meets the requirements, can it be customized?

A:If we can produce the required products, we can produce the required products according to the drawings and requirements provided by customers.

Q2:How long does it take to produce?

A:There is a stock can be sent Immediately. If there is no stock, one month at the latest.

Q3:How long does it take to ship?

A:It will take about 5-7 days to arrive by express and air. It may take up to a month to ship. It takes different time for different geographical locations.

Q4:Can you provide samples?

A:Yes. We can provide samples, but because most of the samples are sent by express, the cost may be very high.

 After-sale Service:

Guide installation

Guidance on online service delivery

Advance service, whole process service

Communicate operation with customer's technicians