China factory Three Phase AC Ywf External Axial Cooling Fan Motor a/c vacuum pump

Product Description

Product Description

Three Phase AC Ywf External Axial Cooling Fan Motor
Unlike conventional motors whose rotors are on the inside of a wound stator, external rotor motors have their rotor on the outside. This presents unique advantages to the fan manufacturer and user as detailed below:

An extremely compact, therefore space saving unit, is produced by utilising the external rotor component as the hub of a fan impeller.
Precision balancing is assured as the hub and impeller becomes 1 integrated unit of short axial length.
Heat is very effectively removed in the airstream, assisted by the fan impeller that acts as a rotating heat sink of appreciable surface area.
Speed control is then possible by low cost voltage variation because the extra heat generated in the rotor under speed control is lost directly into the airstream.
Air filters can be ‘saved’ when clean but ‘air flow compensated’ when dirty by the tendency of centrifugal fans to speed-up as flow resistance increases. The increase in speed is more pronounced when using external rotor motors.
In general, the external rotor principle leads to small efficient motors, ideal for saving space within equipment.

EXTERNAL ROTOR FANS

Fans housing stator and windings inside the rotor are compact, well-balanced, with widely adjustable rotation speed and good motor cooling. Built with insulation system (Class F) and integrated thermal protection. Axial fans are characterised by a series of unique properties of being quiet, robust and thermal-shielding. Useful in all those situations in a system with low pressure drop (therefore not very high resistance), the axial fans guarantee a large airflow rate.

The external rotor axial flow fan has the characteristics of compact structure, convenient installation, reliable operation, low noise, energy saving and high efficiency. The products are widely used in hotels, restaurants, industrial and mining enterprises, office buildings, theaters and other building facilities, as ancillary equipment for freezers and cold storage or for ventilation and heat dissipation. (For example, it is matched with refrigeration equipment or facilities such as supermarket freezers, ice machines, air coolers, chillers, condensing units, etc., and used with dehumidifiers, evaporators, side wall fans, fire fans, central air-conditioning fans and other equipment).

The outer rotor axial flow fan is composed of fan blades, outer rotor motor, net cover, lead wire and other parts. The structure of the fan is calculated by structural finite element, and the strength check, modal analysis, harmonic response analysis and other methods are carried out to ensure that our products have the advantages of stable and reliable structure, high safety factor, small vibration, and strong anti-interference ability! According to customer requirements, Thermal protectors, junction boxes and other components can be installed, or different installation methods such as cylinder type and box type can be selected. The blades are designed according to the principles of aerodynamics, acoustic principles and acoustic performance requirements. They are twisted according to certain rules from the tip to the root. The material is made of high-quality steel or plastic. After dynamic balance verification, it has good starting performance, stable operation and low noise. 

Product Parameters

Model	Rated Voltage (V)	Frequency (Hz)	Current (A)	Input Power (W)	Highest Speed (r/min)	Volume (m³)	Pressure (Pa)	Noise db (A)	Capacitor (μF)
YWF2D-200	380	50	0.25	80	2700	1080	122	57	–
YWF2E-200	220	50	0.30	70	2650	1050	120	56	2.5
YWF4D-200	380	50	0.20	50	1400	500	60	50	–
YWF4E-200	380	50	0.20	40	1400	510	55	50	1.5
YWF2D-250	380	50	0.25	105	2650	1850	192	65	–
YWF2E-250	220	50	0.53	115	2550	1800	190	65	4
YWF4D-250	380	50	0.23	55	1450	1250	60	55	–
YWF4E-250	220	50	0.30	60	1440	1230	60	55	2.5
YWF2D-300	380	50	0.28	140	2480	3250	205	66	–
YWF2E-300	220	50	0.80	180	2550	3300	210	66	6
YWF4D-300	380	50	0.25	70	1400	1950	70	60	–
YWF4E-300	220	50	0.35	75	1400	1950	70	60	3
YWF2D-350	380	50	0.72	400	2400	4850	225	73	–
YWF2E-350	220	50	1.80	400	2350	4750	223	72	10
YWF4D-350	380	50	0.45	130	1400	3270	93	64	–
YWF4E-350	220	50	0.55	125	1400	3270	93	64	4
YWF2D-400	380	50	1.05	580	2350	6480	240	74	–
YWF2E-400	220	50	2.40	510	2280	6100	240	80	12
YWF4D-400	380	50	0.60	180	1400	4800	125	68	–
YWF4E-400	220	50	0.90	190	1400	4800	125	68	6
YWF40D-450	380	50	0.53	210	1390	5410	155	70	–
YWF4E-450	220	50	1.25	280	1380	5380	150	69	10
YWF6D-450	380	50	0.42	155	950	4680	100	60	–
YWF6E-450	220	50	0.85	165	1390	4650	100	60	8
YWF4D-500	380	50	0.62	280	1390	8850	192	72	–
YWF4E-500	220	50	1.75	370	1390	8850	190	72	12
YWF6D-500	380	50	0.90	210	950	5800	125	65	–
YWF6E-500	220	50	0.90	230	950	5800	125	65	8
YWF4D-550	380	50	0.90	450	1350	10800	215	74	–
YWF4E-550	220	50	2.50	500	1350	10800	215	74	12
YWF6D-550	380	50	1.00	210	950	6500	135	68	–
YWF6E-550	220	50	1.10	300	950	6500	135	68	8
YWF4D-600	380	50	1.55	680	1380	13000	230	75	–
YWF4E-600	220	50	3.25	750	1380	13000	230	75	15
YWF6D-600	380	50	1.20	360	930	9600	150	70	–
YWF6E-600	220	50	1.40	450	900	9500	150	70	10

 

Installation dimensions

 

 

Model	A	B	C	D	E	K	F	G	a	b
200	220	270	220	270	210		110	148	12	53
250	270	320	270	320	260	270	120	148	12	53
300	320	370	320	370	310	320	125	158	12	53
350	370	420	370	420	365	375	130	168	12	41
400	420	470	420	470	415	425	140	181	12	57
500	520	570	520	570	515	525	155	183	12	57
600	610	670	610	670	615	625	209	218	12	57

Detailed Photos

 

After Sales Service

Our service:
 Marketing Service
100% tested CE certified blowers.Professional advice for model selection and further market development.

Pre-sales service: 
•We are a sales team, with all technical support from engineer team.
•We value every inquiry sent to us, ensure quick competitive offer within 24 hours.
•We cooperate with customer to design and develop the new products. Provide all necessary document.

After-sales service:
•We respect your feed back after receive the fan.
•We provide 1years warranty after receipt of fan..
•We promise all spare parts available in lifetime use.
•We loge your complain within 24 hours.

1. SAFETY REGULATIONS AND NOTES
Please read these operating instructions carefully before starting to work with the device. Observe the following warnings to prevent malfunctions or physical damage to both property and people. These operating instructions are to be regarded as part of this device. If the device is sold or transferred, the operating instructions must
accompany it. These operating instructions may be duplicated and forwarded for
information about potential dangers and their prevention.

1.1 Levels of hazard warnings
These operating instructions use the following hazard levels to indicate potentially hazardous situations and important safety regulations:
DANGER
Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Compliance with the measures is mandatory.
WARNING
Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Exercise extreme caution while working.
CAUTION
Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury or damage of property.
NOTE
A potentially harmful situation can occur and, if not avoided, can lead to property damage.
1.2 Staff qualification
The device may only be transported, unpacked, installed, operated, maintained and otherwise used by abled, qualified, trained and authorised technical staff. Only authorised specialists are permitted to install the device, to carry out a test run and to perform work on the electrical installation.
1.3 Basic safety rules
Any safety hazards stemming from the device must be re-evaluated once it is installed in the end device. Observe the following when working on the unit: Do not make any modifications, additions or conversions to the device without the approval.
1.4 Electrical voltage
Check the electrical equipment of the device at regular intervals, refer to Safety test. Replace loose connections and defective cables immediately

Company Profile

ZHangZhoug CHINAMFG Fan Co., Ltd. was established in 2003. It is a modern private enterprise focusing on the research, development, production and sales of ventilation equipment. The company is headquartered in Daxi Town, HangZhou City, ZHangZhoug Province, which is the “Hometown of Pumps in China”, and has branches across the country; the production base is located in the East New District of HangZhou City.

The main products of the company: all kinds of portable, mobile, oil-proof and moisture-proof axial flow fan series; medium, low and high pressure centrifugal fan series; boiler type draft fan series; mixed flow, diagonal flow fan series; industrial exhaust fan series; blower series and Y series; air compressor series and three-phase asynchronous motor, etc.; and can design and produce various non-standard and special exhaust equipment and special fans according to customer requirements.

Sincerely thank domestic and foreign customers for their long-term trust and love for A and B fans, and welcome you to visit and guide us at any time. With your support, we are more confident to manufacture ventilation equipment products that meet the needs of social development. Let us work together, help each other, coexist and prosper, and create unlimited business opportunities.

FAQ

Q1: What’s the terms of trade?

A1: FOB,CFR,CIF or EXW are all acceptable.

Q2: What’s the terms of payment?

A2: T/T,L/C at sight or cash.

Q3: How long is your delivery time?

A3: Generally it is 5-10 days if the goods are in stock or it is 20-30 days if the goods are not in stock, it is according to quantity.

Q4: What is the advantage about your company?

A4: Our company has professional team and professional production line.

Q5: If we travel to China to checking your facility, are you welcome?

A5: Of course,  We will provide the whole accompany CHINAMFG your arrivial. Warm Welcome!

Q6: How Many Years of your company working in this industry?

A6: We have over 20-year experience in this field.

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Material:	Iron
Usage:	for Manufacture
Flow Direction:	Axial Flow
Pressure:	Low Pressure
Certification:	RoHS
Color:	Black

Customization:	Available |

Are there specific maintenance requirements for AC motors to ensure optimal performance?

Yes, AC motors have specific maintenance requirements to ensure their optimal performance and longevity. Regular maintenance helps prevent unexpected failures, maximizes efficiency, and extends the lifespan of the motor. Here are some key maintenance practices for AC motors:

1. Cleaning and Inspection: Regularly clean the motor to remove dust, dirt, and debris that can accumulate on the motor surfaces and hinder heat dissipation. Inspect the motor for any signs of damage, loose connections, or abnormal noise/vibration. Address any issues promptly to prevent further damage.
2. Lubrication: Check the motor’s lubrication requirements and ensure proper lubrication of bearings, gears, and other moving parts. Insufficient or excessive lubrication can lead to increased friction, overheating, and premature wear. Follow the manufacturer’s guidelines for lubrication intervals and use the recommended lubricants.
3. Belt and Pulley Maintenance: If the motor is coupled with a belt and pulley system, regularly inspect and adjust the tension of the belts. Improper belt tension can affect motor performance and efficiency. Replace worn-out belts and damaged pulleys as needed.
4. Cooling System Maintenance: AC motors often have cooling systems such as fans or heat sinks to dissipate heat generated during operation. Ensure that these cooling systems are clean and functioning properly. Remove any obstructions that may impede airflow and compromise cooling efficiency.
5. Electrical Connections: Regularly inspect the motor’s electrical connections for signs of loose or corroded terminals. Loose connections can lead to voltage drops, increased resistance, and overheating. Tighten or replace any damaged connections and ensure proper grounding.
6. Vibration Analysis: Periodically perform vibration analysis on the motor to detect any abnormal vibrations. Excessive vibration can indicate misalignment, unbalanced rotors, or worn-out bearings. Address the underlying causes of vibration to prevent further damage and ensure smooth operation.
7. Motor Testing: Conduct regular motor testing, such as insulation resistance testing and winding resistance measurement, to assess the motor’s electrical condition. These tests can identify insulation breakdown, winding faults, or other electrical issues that may affect motor performance and reliability.
8. Professional Maintenance: For more complex maintenance tasks or when dealing with large industrial motors, it is advisable to involve professional technicians or motor specialists. They have the expertise and tools to perform in-depth inspections, repairs, and preventive maintenance procedures.

It’s important to note that specific maintenance requirements may vary depending on the motor type, size, and application. Always refer to the manufacturer’s guidelines and recommendations for the particular AC motor in use. By following proper maintenance practices, AC motors can operate optimally, minimize downtime, and have an extended service life.

Can AC motors be used in renewable energy systems, such as wind turbines?

Yes, AC motors can be used in renewable energy systems, including wind turbines. In fact, AC motors are commonly employed in various applications within wind turbines due to their numerous advantages. Here’s a detailed explanation:

1. Generator: In a wind turbine system, the AC motor often functions as a generator. As the wind turbine blades rotate, they drive the rotor of the generator, which converts the mechanical energy of the wind into electrical energy. AC generators are commonly used in wind turbines due to their efficiency, reliability, and compatibility with power grid systems.

2. Variable Speed Control: AC motors offer the advantage of variable speed control, which is crucial for wind turbines. The wind speed is variable, and in order to maximize energy capture, the rotor speed needs to be adjusted accordingly. AC motors, when used as generators, can adjust their rotational speed with the changing wind conditions by modifying the frequency and voltage of the output electrical signal.

3. Efficiency: AC motors are known for their high efficiency, which is an important factor in renewable energy systems. Wind turbines aim to convert as much of the wind energy into electrical energy as possible. AC motors, especially those designed for high efficiency, can help maximize the overall energy conversion efficiency of the wind turbine system.

4. Grid Integration: AC motors are well-suited for grid integration in renewable energy systems. The electrical output from the AC generator can be easily synchronized with the grid frequency and voltage, allowing for seamless integration of the wind turbine system with the existing power grid infrastructure. This facilitates the efficient distribution of the generated electricity to consumers.

5. Control and Monitoring: AC motors offer advanced control and monitoring capabilities, which are essential for wind turbine systems. The electrical parameters, such as voltage, frequency, and power output, can be easily monitored and controlled in AC motor-based generators. This allows for real-time monitoring of the wind turbine performance, fault detection, and optimization of the power generation process.

6. Availability and Standardization: AC motors are widely available in various sizes and power ratings, making them readily accessible for wind turbine applications. They are also well-standardized, ensuring compatibility with other system components and facilitating maintenance, repair, and replacement activities.

It’s worth noting that while AC motors are commonly used in wind turbines, there are other types of generators and motor technologies utilized in specific wind turbine designs, such as permanent magnet synchronous generators (PMSGs) or doubly-fed induction generators (DFIGs). These alternatives offer their own advantages and may be preferred in certain wind turbine configurations.

In summary, AC motors can indeed be used in renewable energy systems, including wind turbines. Their efficiency, variable speed control, grid integration capabilities, and advanced control features make them a suitable choice for converting wind energy into electrical energy in a reliable and efficient manner.

How does the speed control mechanism work in AC motors?

The speed control mechanism in AC motors varies depending on the type of motor. Here, we will discuss the speed control methods used in two common types of AC motors: induction motors and synchronous motors.

Speed Control in Induction Motors:

Induction motors are typically designed to operate at a constant speed determined by the frequency of the AC power supply and the number of motor poles. However, there are several methods for controlling the speed of induction motors:

1. Varying the Frequency: By varying the frequency of the AC power supply, the speed of an induction motor can be adjusted. This method is known as variable frequency drive (VFD) control. VFDs convert the incoming AC power supply into a variable frequency and voltage output, allowing precise control of motor speed. This method is commonly used in industrial applications where speed control is crucial, such as conveyors, pumps, and fans.
2. Changing the Number of Stator Poles: The speed of an induction motor is inversely proportional to the number of stator poles. By changing the connections of the stator windings or using a motor with a different pole configuration, the speed can be adjusted. However, this method is less commonly used and is typically employed in specialized applications.
3. Adding External Resistance: In some cases, external resistance can be added to the rotor circuit of an induction motor to control its speed. This method, known as rotor resistance control, involves inserting resistors in series with the rotor windings. By varying the resistance, the rotor current and torque can be adjusted, resulting in speed control. However, this method is less efficient and is mainly used in specific applications where precise control is not required.

Speed Control in Synchronous Motors:

Synchronous motors offer more precise speed control compared to induction motors due to their inherent synchronous operation. The following methods are commonly used for speed control in synchronous motors:

1. Adjusting the AC Power Frequency: Similar to induction motors, changing the frequency of the AC power supply can control the speed of synchronous motors. By adjusting the power frequency, the synchronous speed of the motor can be altered. This method is often used in applications where precise speed control is required, such as industrial machinery and processes.
2. Using a Variable Frequency Drive: Variable frequency drives (VFDs) can also be used to control the speed of synchronous motors. By converting the incoming AC power supply into a variable frequency and voltage output, VFDs can adjust the motor speed with high accuracy and efficiency.
3. DC Field Control: In some synchronous motors, the rotor field is supplied by a direct current (DC) source, allowing for precise control over the motor’s speed. By adjusting the DC field current, the magnetic field strength and speed of the motor can be controlled. This method is commonly used in applications that require fine-tuned speed control, such as industrial processes and high-performance machinery.

These methods provide different ways to control the speed of AC motors, allowing for flexibility and adaptability in various applications. The choice of speed control mechanism depends on factors such as the motor type, desired speed range, accuracy requirements, efficiency considerations, and cost constraints.

editor by CX 2024-04-16