Select Language
Inquiry Basket ( 0 )
Company Details

  •  [Shandong,China]
  • Business Type:Manufacturer , Trade Company
  • Exporter:1% - 10%
  • Certs:ISO9001, CCC



  • Title
  • All
Home > Products > Centrifugal Fans > LKWD Single-inlet Centrifugal Fans
Online Service

LKWD Single-inlet Centrifugal Fans

Share to:  
Unit Price: USD 300 - 530 / Piece/Pieces
Min.Order Unit Price
1 Piece/Pieces USD 300 / Piece/Pieces
1 Piece/Pieces USD 530 / Piece/Pieces
Payment Type: L/C,T/T
Terms of Trade: FOB
Min. Order: 1
Delivery Time: 30
Basic Info
Model No.:LKWD
Material: Metal
Blade Material: Stainless Steel
Type: Centrifugal Fan
Electric Current Type: AC
Mounting: Duct Fan
Certification: CCC, SGS, ISO
Additional Info
Transportation: Ocean,Land,Air
Place of Origin: CHINA
Certificate: IOS 9001 / CCC
Port: Qingdao
Product Description


LKWD series forward-curved-blade single-inlet centrifugal fan with external rotor motor is a special fan for air conditioning system developed by our company. It adopts a single air inlet structure, which is especially suitable for the working conditions of single air inlet, such as ceiling installation, wall installation or inside-box installation.

The fluid model of this series of fans has been optimized by CFD advanced technology, which not only increases the output pressure, but also reduces the noise and improves the efficiency. It has the characteristics of energy saving and low noise. It is especially suitable for supporting various air conditioning, refrigeration, purification, fresh air units, air curtain machines and other products, and has been widely used in hotels, hotels, schools, hospitals, factories, refrigerators, cinemas and other fields.

The fans of this series are generally equipped without fan base and can have three different directions of 0 °, 90 °, 180 ° of mounting base. The installation form is flexible and convenient.

LKWD series of fans has the following remarkable advantages:

1. The external rotor motor is adopted, which is compact in structure, small in size, light in weight and easy to install;

2. The forward multi wing impeller with high pressure, low noise, high efficiency and low noise is adopted;

3. The direction of the air outlet can be specially customized, and the installation form is flexible and convenient;

4. Our self-developed matching motors have better reliability and service life than ordinary motors after with optimization of power;

5. Our fans can have different power supplies, such as single-phase, three-phase, DC power supply and others. Voltage and frequency can be as the needs of users from different countries;

6. Our fans can have different speed modes, such as single-speed, double-speed, three-speed and stepless speed regulation to meet the needs of users for air volume regulation.

Model Definition
Part 1: Model Code
No. 1 L: centrifugal fan;
No.2 K: air conditioning fan; W
No. 3 P: belt driven; external rotor motor drive; Z: shaft drive;
No. 4 None: single-case, double inlet; D: single-case, single-inlet; S: double-case, double-inlet; W: single-inlet without case;
Part 2: blade diameter code, unit is mm;
Part 3: case width code, up to 2 bits
SS: tiny width; S: small width; M: medium width; L: large width;
Part 4: motor pole

Part 5: code for different motors

None: non-single-phase motor; C: single-phase single-speed motor; C2: single-phase two-speed motor; C3: single-phase three-speed motor; EC: brushless DC motor

Part 6: code for motor installation method

None: B3 motor, belt-drive rear installation or shaft drive horizontal installation

L: B5 motor, shaft-drive vertical installation

X: B3 motor, belt-drive underneath installation

D: B3 motor, belt-drive top installation

E: B3 motor, belt-drive side installation
Such as LKWD250M4 is forward-curved-blade single-inlet centrifugal fan with external rotor motor, blade diameter 250mm with medium width, motor poles 4.

Installation Method

1) The rotating direction of centrifugal fan is divided into CW and CCW according to the rotating direction of impeller. To LKWD Centrifugal Fans: facing the motor’s lead wire, the clockwise direction of impeller rotation is called CW, and the counter-clockwise direction of impeller rotation is called CCW.

2) Air outlet angle: the angle between the air outlet and the installation surface. LKWD series has three main types according to the outlet angle: 0 °, 90 °, 180 °. It can also be customized to other directions according to the needs of users.

Technical Parameter & Drawing

Work Environment

1) Altitude not more than 1000 meters;

2) The ambient temperature is not lower than - 25 , not higher than 40 ;

3) The relative humidity of the environment shall not exceed 90%;

4) The conveying gas does not contain acid, alkaline and corrosive medium, and the dust content is not more than 150mg / m3.

When the working environment does not meet the above requirements, it needs to be explained when ordering. We can customize the product according to the specific site conditions.

Performance Range

Flow: 4006100 m3/h

Total pressure:150900 pa

Beyond this range, please choose other series of our fan products, or contact our technical department for customization.

Matters Needing Attention

1. Before use, please check carefully:

(1) Whether the motor is intact;

(2) Whether the connecting bolts are loose;

(3) Whether there is serious deformation of fan volute, impeller, fan shaft and other components;

(4) Rotate the fan impeller by hand, the hand induction rotation is stable, without obvious stuck phenomenon.

2. Installation

(1) The grounding bolt of the fan shall be connected reliably;

(2) It is strictly prohibited to use two speed or three speed fans in parallel on the electrical side. When using multiple fans, each fan must be controlled separately by an independent main circuit controller (contactor or frequency converter);

(3) The fan shall be equipped with phase loss and overload protection devices;

(4) Be careful when installing. Do not put your hand into the pulley to avoid crushing.

3. Start up and Operation

(1) Before starting the fan, check the working power supply, which must be within ± 5% of the rated voltage and ± 1% of the rated frequency;

(2) The rotation direction of the fan impeller shall be the same as that of the turning mark;

(3) The operating current of the fan shall not exceed the defined current, otherwise the motor will be damaged or burnt;

(4) When the fan is running, it is strictly prohibited to extend the body or foreign matters to the inside of the fan, and it is strictly prohibited to approach the belt and pulley to avoid danger;

(5) Before starting the single-phase fan, close the air valve of the outlet channel, otherwise it may be difficult to start;

(6) High speed start shall be selected for two speed or three speed fans, and the fan shall be switched to a lower speed after normal operation.

Looking for ideal FORWARD-CURVED-BLADE CENTRIFUGAL FAN Manufacturer & supplier ? We have a wide selection at great prices to help you get creative. All the BLADE SINGLE-INLET CENTRIFUGAL FAN are quality guaranteed. We are China Origin Factory of CENTRIFUGAL FAN WITH EXTERNAL ROTOR MOTOR. If you have any question, please feel free to contact us.

Product Categories : Centrifugal Fans

Email to this supplier
Other Products
Communicate with Supplier?Supplier
Junsu Zhu Mr. Junsu Zhu
What can I do for you?
Contact Supplier