E-Mail : sales05@blauberg.cn


Blauberg centrifugal fans with backward curved aerodynamic impeller blades designed as freewheels fans that could be installed at any directions by extremely compact size, and optimized output air performance without scroll housing necessary to have. AC and DC power supply are available for entire range of fans with integrated and intelligence EC technology motor, with inside or outside mounted international standard remote control R485 communication protocol that’s suitable to be adopted in IoE(Internet of Everything), IoT(Internet of Things), smart home system, Industry 4.0 and committed to Carbon Neutrality climate change by reducing customers carbon footprints. PFC(Power Factor Correction), up to λ>96%, is optional for electricity grad stabilization compliance in certain circumstances of applications. ErP2015 (Energy-related Products) Directive conformity, COMMISSION REGULATION (EU) No 327/2011 of 30 March 2011 implementing Directive 2009/125/EC of the European Parliament and of the Council with regard to eco-design requirements for fans driven by motors with an electric input power between 125 W and 500 kW.

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Speed (RPM)
Sound pres level[dB(A)]
Max. Airflow [m³/h]
Max. Air pressure [Pa]

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Model Nominal
Power input
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Perm amb
Voltage Type Frequency Max. Airflow
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Model {{ item.parameter.model }} Nominal voltage[VAC] {{ item.parameter.nominal_voltage }} Speed (RPM) {{ item.parameter.speed_rpm }} Power input max(W) {{ item.parameter.power_input_max }} Current max(A) {{ item.parameter.current_max }} Sound pres level[dB(A)] {{ item.parameter.sound_pres_level }} Perm amb temp[*c] {{ item.parameter.perm_amb_temp }} Electrical connection {{ item.parameter.electrical_connection }} Voltage Type {{ item.parameter.voltage_type }} Frequency {{ item.parameter.frequency }} Max. Airflow [m³/h] {{ item.parameter.max_airflow }} Max. Air pressure [Pa] {{ item.parameter.max_air_pressure }}
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Backward Centrifugal Fans are advanced air moving devices designed to efficiently handle large volumes of air at high pressures. Unlike traditional fans, they feature backward-curved blades that allow for quieter operation and improved energy efficiency.

1.Product Features:

Backward-curved impeller blades for optimal airflow and pressure generation.

Robust construction with durable materials for long-lasting performance.

High-efficiency motors for reduced energy consumption and lower operating costs.

Aerodynamically designed housing for smooth airflow and minimal turbulence.

Variable speed options for precise control over airflow and pressure levels.

2.Application Scenarios:

  • HVAC Systems:

Ideal for use in heating, ventilation, and air conditioning systems to efficiently circulate air in large commercial or industrial spaces.

  • Industrial Ventilation:

Used in factories, warehouses, and production facilities to exhaust fumes, dust, and other airborne contaminants.

  • Process Cooling:

Suitable for cooling applications in manufacturing processes, data centers, and power generation facilities.

  • Cleanroom Environments:

Critical for maintaining air quality in cleanroom environments such as laboratories, pharmaceutical facilities, and semiconductor manufacturing plants.

3.Company Advantages:

  • Professionalism:

Our company boasts decades of experience in designing and manufacturing industrial ventilation solutions, including backward centrifugal fans, to meet the diverse needs of our clients.

  • Large Scale:

As a leading provider in the industry, we operate state-of-the-art manufacturing facilities equipped with advanced machinery and technology to ensure the highest quality standards and production efficiency.

  • Technological Expertise:

Our team of engineers and technicians are experts in fan design, aerodynamics, and fluid mechanics, allowing us to innovate and deliver cutting-edge solutions tailored to our customers’ requirements.

  • Customization Capabilities:

We offer customizable fan solutions to suit specific application requirements, including different sizes, materials, motor options, and control features, providing flexibility and versatility for our clients.


Q: What are the main advantages of backward centrifugal fans over other types of fans?

A: Backward centrifugal fans offer several advantages, including higher efficiency, lower noise levels, and greater resistance to system pressure variations compared to forward-curved or axial fans. They are also suitable for handling clean or slightly contaminated air streams.

Q: Can backward centrifugal fans be used in hazardous environments?

A: Yes, our backward centrifugal fans can be configured with explosion-proof motors and other safety features to meet the requirements of hazardous or explosive atmospheres, such as those found in chemical processing plants or refineries.

Q: How do I determine the right size and configuration of a backward centrifugal fan for my application?

A: Our team of experts can assist you in selecting the appropriate fan size, airflow capacity, pressure requirements, and other specifications based on your specific application needs and operating conditions. Contact us for personalized assistance and recommendations.

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