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CDR circular duct fans : Highly efficient, quiet and stable

Sep 14, 2026

In projects involving long duct ventilation or those requiring centralized air supply and exhaust, fans often encounter problems of insufficient wind pressure and excessive noise.

The CDR series of circular duct fans from Hangda Electromechanical is specifically designed to address these practical issues. It features a compact structure and easy installation, with its core advantage being high efficiency, low noise, and stability.

1. High Efficiency, Energy Saving

The CDR series uses an airfoil-shaped backward-tilting impeller. This design effectively enhances the efficiency of the fan, reaching up to 50%. This means that when providing the same air volume, it can consume less electricity, saving considerable costs for long-term operation projects.

2. Sufficient Wind Pressure, Long Air Delivery Distance

For the challenge of long-distance duct transportation, the CDR series provides sufficient static pressure through a high-speed design. This ensures that even when connected to pipes of several tens of meters, the end still has sufficient air volume to meet the requirements of centralized ventilation.

3. Stable Operation, Low Noise

Smooth operation of the fan is the key to reducing noise. We have performed strict dynamic balance corrections on each impeller and selected high-quality materials to ensure that the fan has minimal vibration at high speeds. Therefore, its main noise source is the gentle airflow sound rather than mechanical noise, making it suitable for places with requirements for environmental quietness.

Hangda Electromechanical is committed to providing reliable ventilation products. The CDR series circular duct fans, with their solid performance, have become a practical choice for various ventilation projects.

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