In modern ventilation systems, centrifugal fans, as the core equipment for air circulation, their performance directly determines environmental comfort and energy efficiency. Blauberg Motor has been deeply engaged in the centrifugal fan field for many years. With the differentiated designs of the backward curved impeller and forward curved impeller series, it has built solutions covering diverse scenarios, becoming a model of technological innovation in the industry.
The backward curved impeller centrifugal fan features “high efficiency without scroll housing” as its core advantage. It adopts a freewheel structure design, with an extremely compact size enabling 360° omnidirectional installation, achieving optimized air output performance without the need for a traditional scroll housing. The secret lies in the precise calculation of the aerodynamic impeller – the blade curvature has been optimized through CFD (Computational Fluid Dynamics) simulation, increasing air volume by 18% compared to traditional designs at the same rotational speed. This series is equipped with an intelligent EC technology motor, supporting AC/DC dual power supply modes, and has a built-in international standard R485 communication protocol interface, which can seamlessly connect to the Internet of Things, smart homes, and Industry 4.0 systems, enabling remote monitoring and intelligent adjustment. For scenarios with strict requirements on power grid stability, an optional Power Factor Correction (PFC) module is available, with a power factor λ of up to 96%, effectively avoiding interference of equipment operation on the power grid in environments sensitive to voltage fluctuations such as medical clean rooms and precision electronic workshops.
The forward curved impeller centrifugal fan focuses on meeting the demand for “high air pressure and low noise” and offers flexible options with or without a scroll housing. When applied in ventilation ducts or equipment enclosures made of different materials such as galvanized metal, aluminum, and PVC, its unique air flow guiding design optimizes the matching between the impeller and the air duct, increasing air pressure by 30% while controlling operating noise below 52dB(A). This series strictly complies with the ErP2015 directive certification standards, with motor input power covering the range of 125W-500kW, making it particularly suitable for large industrial ventilation systems and commercial building fresh air projects. In a commercial complex project, this series of fans reduced the ventilation energy consumption of the entire building by 23% through intelligent air pressure adjustment, earning points in the LEED green building certification.
From the precise environmental control of laboratories to the air circulation in large venues, Blauberg’s dual series of centrifugal fans break through scenario limitations with technical diversity. In the future, with the advancement of material science, the R&D team plans to adopt carbon fiber composite material impellers to further reduce weight and improve corrosion resistance, providing reliable solutions for more extreme environments.
