-What is the difference between AC & DC and EC cross flow fans ?
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DC Cross Flow fan from Longwell Technology
DC Cross Flow Fan
A DC cross-flow fan draws air in from one side of the fan housing and expels it in a perpendicular direction of the fan across its length, thereby creating a broad and laminar airflow pattern. This fan is also known as a tangential cross flow fan due to its tangential airflow pattern. Powered by DC sources, these fans are used in applications requiring efficient ventilation or cooling in compact spaces.
Longwell technology provides DC cross flow fans with various performance characteristics, materials, 3 Phase BLDC Motor, and functionalities with IP21 rating.Our RoHS-certified product line encompasses a wide selection of tangential cross flow fans in 30mm to 150mm impeller sizes and in metal/aluminum housing. Our DC cross flow fans are fitted with a DC brushless motor and designed for horizontal mounting. We can provide them with options, such as special IP ratings, left and right-hand motor configurations, etc.
● DC Fan Motors Efficiency up to 70% less energy than AC fans
● Quieter operation whhich is low to 19 dBA level.
● Suitable for extreme temperature environments;
● Provides more variable, uneven airflow, Minimal electromagnetic interference
● Low voltage operation– Integrated PCB control system.
Longwell offer different kinds of DC cross flow fans with 3 phase BLDC Motor .And safety grid and speed regulator controller can be choosed with this kind of tangential fan .
Housing: We offer metal housing, mostly of aluminum.
Impeller: Our impellers's diameter ranges from 25mm to 150mm in diameter and 76mm to 1200mm in length ( single - double - triple type ) .
Bearings: We offer NMB or NSK ball bearings for our tangential fans.
Voltages: Our DC cross flow fans are workable in 12V, 24V, and 48V.
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DC Cross Flow Fan LWCD-25mm Series |
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● Length ( Rotor ): up to 300mm ● Airflow: 12-42 m³/h ; ● Fan Speed Ranges: 0 - 4000 RPM available ; ● Voltage: 12 / 24VDC ; ● Speed Control: 0-10V / PWM optional ; ● Frequency: 50/ 60Hz |
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● Length ( Rotor ): up to 1082mm ( Single - Double - Triple Impeller ) ● Airflow 35-152m³/h ; ● Fan Speed Ranges: 0 - 3000 RPM available ; ● Voltage: 12 / 24 VDC ; ● Speed Control: 0-10V / PWM optional ; ● Frequency: 50/ 60Hz |
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● Length ( Rotor ): up to 1055mm ( Single - Double - Triple Impeller ) ● Airflow 42-290m³/h ; ● Fan Speed Ranges: 0 - 3000 RPM available ; ● Voltage: 12 / 24 VDC ; ● Speed Control: 0-10V / PWM optional ; ● Frequency: 50/ 60Hz |
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Tangential Blower LWCD-43mm Series |
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● Length ( Rotor ): up to 420mm ● Airflow 43-150m³/h ; ● Fan Speed Ranges: 0 - 3000 RPM available ; ● Voltage: 12 / 24 VDC ; ● Speed Control: 0-10V / PWM optional ; ● Frequency: 50/ 60Hz |
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Cross Flow Fan LWCD-45mm Series |
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● Length ( Rotor ): 530 / 630 / 700 / 750mm ● Airflow 366-495m³/h ; ● Fan Speed Ranges: 0 - 2000 RPM ; ● Voltage: 24 VDC ; ● Speed Control: 0-10V / PWM optional ; ● Frequency: 50/ 60Hz |
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Cross Flow Fan LWCD-50mm Series |
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● Length ( Rotor ): 530 / 630 / 700 / 750mm ● Airflow 54-381m³/h ; ● Fan Speed Ranges: 0 - 2000 RPM ; ● Voltage: 12V 24 VDC ; ● Speed Control: 0-10V / PWM optional ; ● Frequency: 50/ 60Hz |
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DC Tangential fan LWCD-60mm Series |
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● Length ( Rotor ): UP TO 1300 mm ( Single - Double - Triple Impeller ) ● Airflow: 102 - 820 m³/h ; ● Fan Speed Ranges: 0 - 2600 RPM ; ● Voltage: 12VDC / 24 VDC / 48VDC; ● Speed Control: 0-10V / PWM optional ; |
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Tangential fan LWCD-65mm Series |
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● Length ( Rotor ): UP TO 1300 mm ( Single - Double - Triple Impeller ) ● Airflow: 705 - 1445 m³/h ; ● Fan Speed Ranges: 0 - 1800 RPM ; ● Voltage: 24 VDC / 48VDC; ● Speed Control: 0-10V / PWM optional ; |
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Cross Flow Fan Speed Controller LW-01 Series ● Pwm / 0-10V speed regulator ● LCD touch Screen optional |
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AC Cross Flow Fan Series:
AC Cross Flow Fan
Longwell Technology is a designer, manufacturer, and distributor of high quality, cost effective, RoHS, certified AC cross flow fans, (voltages 110v – 120v & 220v -240v ) in AC capacitors as well as shaded pole motors. We have professional service teams in the United States, Russia, Germany, Poland, Turkey, and China, among other locations. Our Industrial crossflow fans, often referred to as tangential or blower wheel fans, will generate a wide, even flow of air parallel to the unit being cooled, insuring greater efficiencies and lower noise ratios per cfm when compared with axial fans. Impellers range in size from 60mm to 1200mm in wheel diameter for an ac capacitor type motor and from 30mm to 150mm in wheel diameter for a shaded pole motor. The fan's motor location can be changed from the right side to the left side by the factory at the customer's request. Additional modifications allow two impellers to be mounted to a single motor, one impeller on either side of the motor housing. 3rd wire options are also available on all Industrial crossflow fans: signal-rotation detection, signal-frequency generator function as well as temperature control for operating environments where noise and temperature are a consideration. Various speeds are also available.
- Voltage: The fans are available on voltages 110V – 120V & 220V-240V.
- Options: The fans may be equipped with an AC capacitor motor or shaded pole motors.
- Impeller: The impeller length is available in the range of 60mm to 1200mm, with wheel diameters ranging from 30mm to 150mm, suitable for shaded pole motors.
- Bearing: These tangential fans are equipped with ball or sleeve bearings that ensure smooth operation.
- Construction: They feature a metal frame,Galvanized Sheet Steel housing and are equipped with an aluminium alloy rotor.
- Operating Temperature: These industrial cross flow fans and blowers are designed for operating temperatures from -25°C to + 60°C.
- Safety and Compliance: All cross flow fan models displayed on this page are RoHS compliant and impedance protected.
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30mm |
40mm |
43mm |
45mm |
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48mm |
50mm |
60mm |
60 / 65mm- Double |
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65mm |
80-100mm |
120mm |
150mm |
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Plastic impeller Type |
Transformer Cooling Fan |
Elevator Cooling Fan |
Cross flow impeller |
EC Cross Flow Fan Series:
EC Cross Flow Fan
EC cross-flow fan, also known as an electronically commutated cross flow fan, is a type of fan that utilizes an electronically commutated motor (EC motor) for its operation.
Cross-flow fans are designed to produce a wide, uniform airflow. They have a cylindrical housing with an impeller wheel that extends across the diameter of the housing. As the impeller rotates, it draws air in through one side of the housing and expels it out the other side, creating a consistent flow of air across the entire length of the fan.
The electronically commutated motor used in an EC cross-flow fan is a brushless DC motor that offers several advantages over traditional AC motors or standard DC motors. EC motors are more energy-efficient, quieter, and offer variable speed control, allowing for precise adjustment of airflow. They also typically have a longer lifespan and require less maintenance compared to other types of motors.
Longwell technology provides EC cross flow fans with various performance characteristics, materials, with EC External Rotor Motor.Our ec cross flow fan product line encompasses a wide selection of tangential cross flow fans in 80mm to 150mm impeller sizes and in steel+aluminum alloy housing. Our EC cross flow fans are designed for horizontal mounting. We can provide them with options, such as special IP ratings, left and right-hand motor configurations, etc.
Comprehensive Specifications:
- Impeller Sizes: Available in a broad range of sizes (80mm - 150mm) to seamlessly integrate into compact spaces. Additionally, double impeller configurations are offered for enhanced airflow.
- Material: Constructed from lightweight yet robust aluminum alloy, the impellers and housings offer an optimal balance of durability, weight efficiency, and performance.
- Bearings: Equipped with premium ball bearings that minimize friction, resulting in reduced wear and tear and smooth operation even in demanding environments.
- Operating Voltages: Operating voltage 230V, can be customized to meet various application requirements.
- Operating Temperature Range: Function seamlessly across a wide temperature spectrum (-20°C to 60°C), ensuring consistent performance in diverse operating conditions.
Longwell EC Cross Flow Fans
EC 80mm cross flow fan
EC 90mm cross flow fan
EC 100mm cross fmm fan
EC 110mm cross fmm fan
EC 120mm cross fmm fan
EC 150mm cross fmm fan
Features of EC Cross Flow Fans and Blowers Offered by Longwell technology
Unmatched Reliability and Performance: Our EC cross-flow fans are meticulously designed to deliver superior performance and enduring reliability in the most challenging industrial environments. These innovative fans boast an array of features, making them the ideal choice for a wide range of applications.
Comprehensive Specifications:
Impeller Sizes: Available in a broad range of sizes (80mm - 150mm) to seamlessly integrate into compact spaces. Additionally, double impeller configurations are offered for enhanced airflow.
Material: Constructed from lightweight yet robust aluminum alloy, the impellers and housings offer an optimal balance of durability, weight efficiency, and performance.
Bearings: Equipped with premium ball bearings that minimize friction, resulting in reduced wear and tear and smooth operation even in demanding environments.
Operating Voltages: Operating voltage 230V, can be customized to meet various application requirements.
Operating Temperature Range: Function seamlessly across a wide temperature spectrum (-20°C to 60°C), ensuring consistent performance in diverse operating conditions.
Safety and Compliance: All fans adhere to strict RoHS compliance and are protected for impedance, guaranteeing safe and reliable operation.
Distinct Advantages of EC Cross-Flow Fans:
Uniform, Broad Airflow: Engineered to generate expansive yet uniform airflow patterns. The tangential flow design ensures consistent air distribution across a broad area, making them ideal for applications requiring efficient cooling.
Diverse Applications: The uniform airflow pattern makes these tangential blower fans highly sought-after for HVAC systems, cooling electronic components, and various other applications.
Optimal Heat Dissipation: The wide airflow distribution and laminar flow characteristics of EC cross-flow fans effectively dissipate heat from heat-generating components, maintaining optimal operating temperatures. This translates to extended lifespan, enhanced reliability, and improved performance for electronic devices, industrial machinery, and other heat-sensitive equipment.
Quiet Operation: Equipped with brushless EC motors, these fans deliver exceptionally quiet operation. The combined design of the brushless motor and fan ensures smooth and silent performance, making them perfect for noise-sensitive environments in both commercial and industrial settings.
Energy Efficiency: Powered by efficient DC motors, these fans offer precise airflow control and the ability to operate at variable speeds. This feature allows for optimized energy consumption, minimizing running costs.
Cross Flow Fan Impeller for Air curtain, ventilation:
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Metal Cross Flow fan Impellers |
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Which kind of components does Longwell can provide for DC cross flow fan ?
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-Speed Regulator/ Thermostat |
Safety Grid |
Other OEM parts |
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Designed for DC Tangential fan, suitable for 0-10V/PWM speed control |
Coated in black designed for dc cross flow fan, Light weight and Rust-preventing |
3 phase BLDC motor with Ball bearings, Specially for DC Low noise cross flow fan design, Down to 19 dBA |
FAQ
Q1. What's the advantages of your cross flow fan ?
Reply:
● LONGWELL cross flow is special design for low noise purpose only. noise even low to 12dBA.
● We have big production range from 20mm to 200mm.
● We have heavy duty design which makes 4000rpm for diameter less 60mm,150mm dia fan makes over 2700rpm
Q2. What's the wire-connection details for DC Cross flow Fan series ?
Reply:
Please refer to the wiring diagram of dc tangential fan series below:
Q3. Does Longwell provide any speed control options for DC cooling fans ?
Reply:
Yes, Longwell can provide some speed regulator solutions according customer's requirements, such as:
The 0-10V/ pwm controller is for use with the full range of cross flow fans / dc cooling fans. Powered by the 10VDC it provides infinitely variable, manual speed control between 0% and 100%
● Can control multiple fans running at the same speed
● Stepless control knob for infinitely variable speed setting
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Q4. Life span of this kind of dc cross flow fan ?
Reply:
Longwell EC external rotor motor surpasses efficiency class IE4, magnets with no rare earths, maintenance-free ball bearings (sealed) with long-term lubrication, theoretical nominal service life of at least 40, 000 hours of operation, installation with horizontal and vertical motor shaft; soft start, integrated current limitation. Integrated electronics, quiet commutation logic; 100 % speed controllable; control signal 0-10 V DC / PWM; tach output.
Q5. Are there any other AC DC EC cross flow fans options or solutions for selection ?
Reply:
Yes, sure.
LONGWELL is a professional manufacturer of fans, blowers, motors and components for heating, venlation, air conditioner and refrigeration applications, specialist in centrifugal fans, axial fans, AC /BLDC cross flow fans, single / double forward curved fan BLOWERS, AC / BLDC/ECM motors as well as industrial fan blowers, inline duct fans, Poultry ventilation fans ( AC / DC /EC ), etc. Please check below photos for reference:
Longwell as a known and trustworthy DC cross flow fan Supplier in China, we assure you the best product quality and service. O.
If you are looking for DC cross flow fans for your manufacturing applications or electronic devices, do go through the features and specifications of our various models of DC cross flow fans. In case you require any further information or have technical queries, you can contact us on phone or email at:
Email: bruce@zjlongwell.com Peter@zjlongwell.com
Direct- Phone: 0086 18358274663
We are looking forward to develop a good relationship with you.
have any question?
Knowledge articles related to cross-flow fans
Cross flow fans, also known as Tangential fan, feature multi-blade, long cylindrical impellers with forward-facing multi-wing blades. What exactly is a cross-flow fan, and what are its construction and characteristics? Let experts from LONGWELL Electric Technology Co., Ltd. provide you with insights:
Centrifugal fans and Cross Flow Fans are common air conveying devices widely used in industrial, construction, and HVAC fields. Among the leading providers in this industry, Longwell Electrical Technology Co., Ltd. is dedicated to offering high-quality centrifugal and cross flow fans to meet diverse customer demands.
Cross-flow fans and axial fans belong to the category of air power equipment. While they share several similarities in their operational principles and functionalities, they also possess distinctive differences, making them suitable for specific application environments.
Step 1: Choose the Right Location
Step 2: Prepare for Installation
Step 3: Connect the Power
Step 4: Test the Fan
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