DC Backward Curved Centrifugal Fan
Our DC Backward Curved Centrifugal Fan is engineered for high-efficiency air movement applications requiring stable performance, low energy consumption, and precise speed control. Equipped with a brushless DC external rotor motor and galvanized metal sheet impeller, this fan delivers excellent airflow performance and long service life.
The backward curved impeller design provides high pressure capability, smooth operation, and reduced noise, making it suitable for HVAC systems, air handling units, industrial ventilation, cooling equipment, and customized OEM solutions.
Key Features
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High Efficiency Brushless DC Motor
Equipped with an external rotor brushless DC motor, offering high efficiency, reliable operation, and reduced maintenance requirements.
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Backward Curved Impeller Design
The backward curved centrifugal impeller improves aerodynamic efficiency, provides stable airflow, and supports higher static pressure applications.
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Galvanized Metal Sheet Impeller
Durable galvanized steel construction provides excellent corrosion resistance and mechanical strength for long-term operation.
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Flexible Speed Control
Supports 0-10VDC and PWM speed control, allowing precise airflow adjustment according to system requirements.
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Compact and Reliable Structure
Integrated external rotor motor design enables compact installation and optimized space utilization.
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Industrial Protection Performance
IP44 protection rating ensures reliable operation in various industrial and commercial environments.
Technical Specifications
| Model | HF24V25056B2 / HF48V25056B2 |
|---|---|
| Product Type | DC Backward Curved Centrifugal Fan |
| Motor Type | Brushless DC External Rotor Motor |
| Rated Voltage | 24VDC / 48VDC |
| Operating Voltage | 16~32VDC / 34~57VDC |
| Rated Power | 168W |
| Rated Current | 6.8A (24V) / 3.4A (48V) |
| Rated Speed | 2750 RPM |
| Air Flow | 1650 m³/h |
| Air Pressure | 595 Pa |
| Noise Level | 72 dBA |
| Speed Control | 0-10VDC / PWM |
| Protection Class | IP44 |
| Insulation Class | Class B |
| Impeller Material | Galvanized Metal Sheet |
| Operating Temperature | -25°C ~ +60°C |
| Weight | 2.3 kg |
Applications
- HVAC ventilation systems
- Air handling units (AHU)
- Industrial cooling systems
- Electrical cabinet cooling
- Data center ventilation equipment
- Commercial ventilation solutions
- Energy-saving air circulation systems
- OEM customized equipment
Why Choose Our DC Backward Curved Fan?
- High airflow with excellent pressure performance
- Energy-efficient BLDC motor technology
- Adjustable speed control for smart systems
- Durable galvanized steel impeller
- Suitable for continuous industrial operation
- OEM customization support available
