CENTRIFUGAL BLOWERS

CENTRIFUGAL BLOWERS

 

Blauberg Motoren centrifugal blowers combine compact scroll housing geometry, forward-curved impeller platforms and configurable motor technology for ventilation systems, air handling units and OEM equipment that needs stable airflow through filters, coils, ducts and compact machine spaces.

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BLAUBERG FOR DIRECTED PRESSURE AIRFLOW

BLAUBERG FOR
DIRECTED PRESSURE AIRFLOW

 

Centrifugal blowers draw air into the impeller and discharge it at a right angle through the volute outlet. The scroll housing redirects the airflow while helping generate the static pressure required for ducted, filtered and enclosed systems. With EC/DC motor technology and a range of compact sizes, Blauberg blowers deliver flexible airflow solutions for ventilation, air handling and equipment cooling applications.

  • 62 dB(A)
  • 2,426 m³/h
  • 750 W
  • Φ120~250 mm
  • EC / DC Motors

Single-inlet blowers

120mm Product sizes
140mm Product sizes
160mm Product sizes
180mm Product sizes
200mm Product sizes
225mm Product sizes
250mm Product sizes

Dual-inlet blowers

120mm Product sizes
133mm Product sizes
146mm Product sizes
200mm Product sizes

COMPACT BLOWER MODULES FOR EQUIPMENT THAT
NEEDS FOCUSED AIR MOVEMENT

 
Compact Blower Modules

Blauberg Motoren develops centrifugal blower solutions for OEM ventilation systems, air handling units, air purification, HVAC modules, electronics cooling and industrial equipment. The page structure follows Blauberg product landing pages while highlighting the selection topics buyers compare on leading international blower brands: airflow at pressure, motor/control choice, outlet direction, compact installation and reliable production support.

01

DIRECTED OUTLET AIRFLOW

Scroll housings guide air toward a defined outlet, making integration easier in compact ducts, cabinets and machine housings.

02

BETTER PRESSURE CAPABILITY

Ideal when airflow must pass through filters, coils, heat sinks, acoustic paths or other resistance elements.

03

PROJECT-READY CUSTOMIZATION

Blauberg Motoren can support motor platform, wiring, control method, outlet orientation and mounting details according to equipment needs.

KEY ADVANTAGES OF CENTRIFUGAL BLOWERS FOR
HIGH-RESISTANCE SYSTEMS

 

Blauberg Motoren blowers are positioned around high-efficiency air volume transmission, intelligent speed regulation, flexible installation and stable operation in compact HVAC and ventilation equipment.

HIGH-EFFICIENCY AIR VOLUME
TRANSMISSION

HIGH-EFFICIENCY AIR VOLUME TRANSMISSION

The integrated volute design guides airflow more smoothly, improving stability and efficiency for medium and high static pressure applications.

01

INTELLIGENT SPEED
REGULATION

INTELLIGENT SPEED REGULATION

0-100% stepless speed regulation and RS485 functions support accurate air volume control and energy-efficient operation.

02

MULTIPLE CONTROL
LOGICS

MULTIPLE CONTROL LOGICS

Control strategies can support constant power, constant speed, constant torque, constant air volume and pressure or flow feedback requirements.

03

ULTRA-HIGH ENERGY
EFFICIENCY

ULTRA-HIGH ENERGY EFFICIENCY

EC motor technology with a forward centrifugal impeller and dedicated volute can improve overall efficiency versus traditional AC volute fan solutions.

04

LOW-NOISE
OPERATION

LOW-NOISE OPERATION

Integrated motor and impeller design reduces transmission noise, while aerodynamic optimization and dynamic balancing help suppress airflow and vibration noise.

05

PROTECTION AND
MONITORING

PROTECTION AND MONITORING

Overheat, overload, overcurrent, overvoltage, undervoltage and locked-rotor protection can support safer remote system operation.

06
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CENTRIFUGAL BLOWER CONFIGURATIONS
FOR OEM INTEGRATION

 

Three practical configurations address common application needs, making it easier to select the right model, confirm specifications and match performance curves.

SINGLE-INLET CENTRIFUGAL BLOWER

Compact inlet and scroll outlet design delivers focused, controlled airflow while simplifying integration into ventilation systems, filtration units and space-constrained equipment modules.

SINGLE-INLET COMPACT
DUAL-INLET CENTRIFUGAL BLOWER

A balanced intake design supports higher airflow requirements while promoting smooth and consistent air distribution in air handling units and ventilation assemblies.

DUAL-INLET HIGH FLOW
CUSTOM BLOWER ASSEMBLY

CUSTOM BLOWER ASSEMBLY

Motor platform, outlet orientation, bracket, wiring harness and mounting options can be adapted to the final equipment envelope, supporting OEM requirements for compact installation, electrical integration and mechanical fit.

OEM CUSTOM

DATA BUYERS SHOULD DEFINE
BEFORE QUOTATION

 

For centrifugal blowers, the operating point matters more than free-air airflow. Blauberg Motoren selection should be based on required air volume at system resistance.

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DATA BUYERS SHOULD DEFINE BEFORE QUOTATION
SELECTION ITEM BUYER INPUT ENGINEERING NOTE
Application Ventilation system, AHU, filtration cabinet or compact HVAC module Application type defines the resistance path, outlet direction and service access.
Airflow Required m³/h or CFM at working point Confirm with the pressure condition, not only free-air flow.
Static pressure Pa / in.wg including filter, coil and duct losses Critical for blower sizing and noise control.
Voltage AC mains, EC platform or DC supply Match the equipment power architecture and region.
Speed control Fixed speed, 0-10V, PWM or communication control EC options help optimize partial-load energy use.
Outlet direction Outlet angle, clockwise/counter-clockwise rotation and flange Reduces duct redesign and avoids installation interference.
Environment Ambient temperature, humidity, protection and insulation needs Supports stable Blauberg blower operation in real equipment.
Noise target dBA target, distance and mounting condition Impeller speed, scroll design and inlet clearance affect sound.
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SELECTION TIP

Define the working point first — required airflow and static pressure. Then verify motor, control, outlet and installation requirements. Use the model-specific performance curve and dimensions to confirm the final fit.

EC AND DC BLOWER RANGES CONDENSED
FOR FAST SELECTION

 

From dimensions and airflow performance to motor platform and inlet configuration, key selection data is organized to simplify model comparison and support precise blower selection for your application.

SERIES VOLTAGE POWER SPEED SOUND TYPICAL USE
EC single-inlet blower 1~230V / 3~380V 75-750W 1350-2600 RPM 65-80 dB(A) Ventilation system, filtration modules, compact HVAC boxes
EC dual-inlet blower 1~230V 85-400W 1400-2250 RPM 63-77 dB(A) AHU sections and higher airflow equipment layouts
DC single-inlet blower 24V / 48V / 110V / 310V DC 85-400W 1480-2800 RPM 65-77 dB(A) DC-powered equipment and intelligent ventilation modules
DC dual-inlet blower 24V / 110V / 310V DC 75-350W 1320-2150 RPM 62-75 dB(A) Compact air-conditioning boxes and OEM airflow assemblies
B,F
INSULATION CLASS
2,800RPM
MAX SPEED RANGE
-25~+60°C
OPERATING TEMPERATURE
0-10V/PWM/RS485
SPEED CONTROL

CENTRIFUGAL BLOWERS FOR HVAC, VENTILATION &
EQUIPMENT APPLICATIONS

 

From ventilation and air handling to filtration, HVAC and OEM equipment, Blauberg centrifugal blowers deliver directed airflow and reliable pressure performance across demanding system configurations.

Fan Coil Units
APPLICATION 01

Fan Coil Units

Blauberg centrifugal blowers deliver focused airflow through compact fan coil units, supporting air circulation across heat exchange coils while handling system resistance within space-constrained equipment.

Airflow Pressure
Air handling units
APPLICATION 02

Air handling units

For AHU and HVAC box applications, the scroll outlet supports stable supply air, return air or exhaust airflow through coils, dampers and internal partitions.

AHU Integration Supply Air
Filtration & Air Purification
APPLICATION 03

Filtration & Air Purification

Pressure-capable blower assemblies are suitable for air purification cabinets, filter boxes and ventilation modules where pressure loss changes over time.

Filter Cabinets Pressure Compensation
Fresh Air & Dehumidification
APPLICATION 04

Fresh Air & Dehumidification

Compact Blauberg Motoren blower platforms are designed for fresh air dehumidification and ventilation equipment, delivering stable airflow in compact air treatment systems with limited installation depth.

Compact Integration Stable Airflow
Industrial equipment ventilation
APPLICATION 05

Industrial equipment ventilation

Directed outlet airflow supports controlled heat circulation and process ventilation in thermal processing equipment, machinery housings and production systems.

Control Cabinets Machine Cooling
OEM appliances and compact Equipment
APPLICATION 06

OEM appliances and compact Equipment

Flexible scroll, outlet and bracket design helps appliance manufacturers achieve repeatable airflow in constrained product spaces.

OEM Integration Compact HVAC

WHEN SHOULD BUYERS CHOOSE
A CENTRIFUGAL BLOWER?

 

Through this comparison, procurement and engineering teams can identify the appropriate fan type for each application while clearly distinguishing between axial-flow fans, cross-flow fans, backward-curved centrifugal fans, and blowers.

Best for compact equipment needing directed outlet airflow and usable pressure through resistance such as filters, coils or ducts.

Centrifugal blower

Best for high-volume, straight-through airflow where pressure resistance is low, such as heat exchangers and open ventilation.

Axial fan

Best for a long, even air curtain across a wide outlet, often used in slim HVAC, appliance and display applications.

Cross flow fan

Best for plenum, fan grid and free-running systems that require efficient pressure generation without a scroll housing.

Backward centrifugal fan

EC AND DC BLOWER PLATFORMS FOR DIFFERENT
EQUIPMENT STRATEGIES

 

Blauberg Motoren can position blower solutions around control complexity, energy targets, cost requirements and regional voltage needs.

EC centrifugal blowers

Electronically commutated EC motors integrate motor electronics for high efficiency, optimal static pressure, and demand-based speed regulation in air handling units, cleanrooms, ducted ventilation, and precision cooling systems.

  •  
    Efficient variable-speed operation for part-load equipment cycles.
  •  
    Suitable for 0-10V, PWM or communication-based control when specified.
  •  
    Useful in smart HVAC, filtration, energy storage and cabinet cooling platforms.

DC centrifugal blowers

Brushless DC motors support low-voltage platforms where compact design, high static pressure, and stable airflow are important for telecom cabinets, server racks, medical devices, and localized spot cooling.

  •  
    Suitable for 24V, 48V, 110V and 310V DC equipment platforms.
  •  
    Good fit for compact ventilation, air-conditioning boxes and intelligent equipment where the customer power supply is DC-based.
  •  
    Can support OEM programs that need compact size, stable airflow and controlled electrical integration.

AIR ENTERS AXIALLY AND DISCHARGES
THROUGH THE SCROLL OUTLET

 

For a centrifugal blower, inlet clearance, outlet direction and duct transition design directly affect airflow, noise and service life. Compact integrated installation and multi-direction mounting with 360-degree rotation adjustment support flexible equipment layouts.

SINGLE-INLET

BLOWER AIRFLOW

 

Air enters from one side of the blower inlet, is accelerated by the impeller, and exits through the volute outlet into the ventilation duct or equipment channel.

SINGLE-INLET BLOWER AIRFLOW
DUAL-INLET

BLOWER AIRFLOW

 

Air enters from both sides for larger air volume, then discharges through the scroll outlet for AHU sections and higher-airflow ventilation assemblies.

DUAL-INLET BLOWER AIRFLOW

ENGINEERING SUPPORT AFTER THE
SELECTION DATA IS CONFIRMED

 

Performance matching

Performance matching

Airflow and pressure targets are matched with impeller, scroll and motor selection.

Mechanical integration

Mechanical integration

Outlet orientation, bracket, wiring route, 360-degree rotation adjustment and mounting envelope are coordinated with customer equipment.

Reliability validation

Reliability validation

Sample testing, noise review and production consistency checks support Blauberg quality expectations.

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SELECTION TIP

Define the required airflow, pressure, voltage and installation space first. With these parameters confirmed, Blauberg Motoren can help match the blower configuration and support mechanical integration, sample testing and production coordination through the next stages of the project.

Cross Flow Fan FAQs
for Buyers and OEMs

What is a centrifugal blower?

What is the difference between a centrifugal blower and a centrifugal fan?

When should I choose a single inlet or dual inlet blower?

Can Blauberg Motoren customize centrifugal blowers?

Yes. Depending on project volume and technical requirements, Blauberg Motoren can discuss motor technology, voltage, control method, outlet direction, wiring, mounting brackets and application-specific validation.

What data is needed for blower selection?

Please provide airflow at operating pressure, voltage, frequency or DC supply, control requirements, outlet direction, mounting space, ambient temperature, noise target and expected duty cycle.

Are EC centrifugal blowers suitable for energy-saving systems?

EC blowers are useful when equipment needs efficient variable-speed operation. They can reduce power consumption during partial-load operation and help smart equipment match airflow to real demand.

Why are centrifugal blowers used in ventilation systems?

Ventilation systems often include filters, heat exchangers and compact internal ducts. A Blauberg centrifugal blower can provide directed outlet airflow and usable pressure to keep ventilation performance stable as system resistance changes.

How do centrifugal blowers support air handling units?

In an AHU or air-conditioning box, a centrifugal blower helps move air through coils, dampers, filtration stages and internal partitions. Blauberg Motoren can discuss outlet direction, motor control and mounting requirements according to the AHU layout.

Suzhou Blauberg Motoren Technology Co., Ltd. is one of the most professional centrifugal blowers manufacturers and suppliers in China, featured by quality products and good service. Please rest assured to buy bulk customized centrifugal blowers from our factory. Welcome to contact us for quotation.

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