EC Forward Curved Centrifugal Blower Ø140mm
This EC centrifugal blower features a forward curved galvanized metal sheet impeller and an external rotor brushless DC motor design, providing stable airflow performance, compact structure, and energy-efficient operation.
Designed for professional HVAC and industrial ventilation applications, this blower supports intelligent speed regulation through 0-10VDC/PWM control, allowing flexible airflow adjustment according to system requirements.
The compact Ø140mm centrifugal blower delivers reliable air pressure and airflow performance, making it suitable for air handling units, ventilation systems, cooling equipment, filtration systems, and other industrial applications.
Key Features
- EC brushless DC external rotor motor
- Forward curved centrifugal impeller design
- Galvanized metal sheet impeller for durability
- High efficiency and low energy consumption
- 0-10VDC/PWM variable speed control
- Compact structure with high airflow output
- IP44 protection rating
- Class B insulation
- Low noise operation
- Suitable for continuous industrial operation
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Type | EC Forward Curved Centrifugal Blower |
| Model | QF2E14059A2 |
| Rated Voltage | 230VAC |
| Frequency | 50/60Hz |
| Rated Current | 0.9A |
| Rated Power | 110W |
| Rated Speed | 2150 RPM |
| Air Flow | 450 m³/h |
| Air Pressure | 350 Pa |
| Noise Level | 71 dBA |
| Motor Type | Brushless DC External Rotor Motor |
| Impeller Material | Galvanized Metal Sheet |
| Protection Class | IP44 |
| Insulation Class | Class B |
| Speed Control | 0-10VDC / PWM |
| Operating Temperature | -25°C to +60°C |
| Weight | 2.3 kg |
| Impeller Diameter | Ø140mm |
Applications
- HVAC ventilation systems
- Air conditioning equipment
- Air handling units (AHU)
- Industrial cooling systems
- Air purification equipment
- Filtration systems
- Electronic cabinet cooling
- Commercial ventilation equipment
- Heat exchange systems
- OEM machinery ventilation solutions
Why Choose This EC Centrifugal Blower?
Energy Efficient EC Motor Technology
The integrated brushless DC external rotor motor provides high efficiency compared with traditional AC motors, reducing power consumption and maintenance requirements.
Intelligent Speed Control
With 0-10VDC/PWM control input, the blower can easily integrate with smart controllers, allowing precise airflow adjustment and system optimization.
Reliable Industrial Performance
The galvanized metal forward curved impeller ensures mechanical strength, corrosion resistance, and stable operation under demanding working conditions.
OEM & Custom Solutions Available
Suitable for OEM manufacturers requiring compact, efficient, and reliable centrifugal blower solutions for ventilation and cooling applications.



