UL approval ac ball bearings electric motor for heater,freezer room

1)YWF400sucking and blowing,920/1380rpm,4/6 poles 2)heater,condensor,freezer,exhaust fan,evaporator,air cooler 3)UL,CEapproval

1. An overview of axial fans with external rotor motor

1. YWF series axial fans are external rotor motors. These motors have characteristics of compact structure, convenient installation and high efficiency.

2. YWF series external rotor motors have two kinds, single phase asynchronous capacitor fan motor and three phases asynchronous fan motor. They are suitable for commercial freezer and cold storage, ice machine, air cooling machine, water chiller, condensing unit, central air-conditioning and heater, etc.

3. The insulation class of motor is F or B, and the protection class of that is IP54 or IP44. All motors have thermal protector in the winding.

4. Voltage: The voltage of the single phase motor is 120V/60Hz, 220V/50Hz. The voltage of three phases motor is 380V/50Hz, we can also supply other fan motors with connection box for clients' choices.

5. The axial fans are available with fan guard grill and without guard grill, operating with 200mm to 900mm diameter fan blades.

6. The useable ambient temperature is from -30°C to 60°C.

7. The service life of motors is more than 30,000 hours.

8. Before operating the motor, make sure to put the earth wire of the motor connected with the external grounding device.

9. Most of External Rotor Motors have passed UL, CE approval in Europe and CCC safety certificate in China.

 

2. The Brief introduction of Axial fan with external rotor motor YWF450

—The diameter of the fan blade:450 mm

—Material: Guard Grille: steel, phosphated and coated in black plastic

Wall ring: sheet steel, re-galvanised and coated in black plastic

blades: sheet steel

Rotor: coated in black plastic

—Number of blades: 5

—Direction of rotation: direction of air flow "S" counter-clockwise, direction of air flow "B" clockwise seen on rotor

—Type of protection: IP54 or IP44 rating for protection against dust and water

—Approvals: UL, CE, CCC approval

—Insulation class: B or F

—Mode of operation: Continuous operation (S1)

—Bearings: Maintenance- free ball bearings

—Motor protection: without TOP, TOP wired internally

—Cable exit: lateral

—Protection class: I

3. performance parameters

MODEL	VOLTAGE V	FREQUENCY Hz	CURRENT   A	INPUT     W	SPEED RPM	MAX AIR FLOW       m³/h	CAPACITOR μF	NOISE dB(A)	CURVE
YWF4D450	380	50	0.62	250	1350	4850	/	60	1
YWF4E450	220	50	1.2	250	1350	4800	8	60	1
	120	60	26	330	1600	5260	32	62	2
YWF6D450	380	50	0.45	145	920	3550	/	52	3
YWF6E450	220	50	0.7	150	920	3550	6	52	3
	120	60	1.5	180	1050	3830	20	54	4

 4. shape and the size of installation

MODEL	A	B	C	D	E	F	G
YWF450	450	470	520	545	30	90	160

5. air volume and static pressure curve

6. Our competitive Advantages

A) Cost advantage

We have our own workshop, metal processing workshop and many other advanced machines. Key production parts are manufactured by ourselves.

B) Technological advantage

Our R&D center is provincial R&D Center. There are 4 Professor grade engineers and 6 senior engineers in our company.

C) Substantial experience and good service

We professionally produce motors and fans for more than 33 years. And we have done international trade for more than 10 years. So we can supply high quality products and services.

D) High cost performance

We have cost advantage, technological advantage and substantial experience. So our products have high cost performance. You can take the same cost purchase more better goods, or spend less for the same product.

 

7.  Welcome to the world of motors and fans (Ningbo Lionball Ventilator Co., Ltd)

A) Have a glance at our Manufacturing facility

    We have our own high speed punching machine, digital control machine, grinding machine, automatic coil winding machine, injection machine, and many other advanced equipments. Key production parts are manufactured by ourselves.

For more information, welcome to visit our company at any time

 

B) Advanced quality control equipments

We have passed the ISO9001-2000 Certificate and BV supplier assessment certificates.  We give a 100% full inspection from the incoming materials to the final finished products. The air flow testing machine, power testing machine, impeller balance testing machine, salt spray chamber, projection apparatus...

 

8. Approvals and certificates

Our companies is a leading manufacturer of fans and motors in China since 1980, we specialize in the fans and motors for more than 33 years. The following certificates are our latest version, including UL approval in America VDE approval in Germany, CE and RoHS in Europe, CCC certificates in China. We also have obtained many other honorable titles, such as supplier assessments certificates, high-tech enterprise, research& technology center...

UL approval ac ball bearings electric motor for heater,freezer room