之所以叫离心风机是因为它依靠叶轮旋转的离心力使气体沿轴向吸入，但径向吹出。其结构的特点使它相比轴流风机而言能承受更大的风压。

As its name implies, centrifugal fans inhale the air along the axial direction, but blown out radially based on the centrifugal force of impeller rotation.

ebmpapst离心风机根据叶轮结构的不同分为前向离心风机和后向离心风机。不同的叶轮造就了两种风机不同的特点和应用。

ebmpapst centrifugal fans are divided into forward and backward centrifugal fans. Different impeller makes the difference in their features and applications.

前向离心风机叶片尺寸小、数量多、密度大，因此整体结构更紧凑且运行安静，适用于狭小空间和高风压环境，但它输出的风量较小，一般需搭配蜗壳使用。

Blades of forward centrifugal fans are small in size, large in number, and high in density, so the overall structure is more compact and the operation is quiet. It is suitable for small spaces and high wind pressure environments, but its output air volume is small, and it generally needs to be used with volute casing.

后向离心风机采用自由轮设计，无需蜗壳，相比前向离心风机而言，它能输出更大的风量，但能承受的风压较小。

The backward centrifugal fan adopts a free wheel design and does not need a volute. Compared with the forward centrifugal fan, it can output a larger air volume, but it can withstand a lower wind pressure.

对于带有外转子电机的离心风机，电机集成于叶轮中，这样不仅可以确保电机的出色冷却效果，还可以实现非常紧凑的设计。

For centrifugal fans with external rotor motors, the motor is integrated in the impeller, which not only ensures excellent cooling effect of the motor, but also realizes a very compact design.

整个产品系列提供AC风机和采用EC技术的EC风机，EC风机除了节能之外，集成的控制电路还可以实现控制、监测和维护功能，尤其适合净化，工业空调，新风系统、电子冷却等相关应用。

The entire product series provides AC fans and EC fans with EC technology. In addition to energy saving, EC fans can also realize control, monitoring and maintenance functions with integrated control circuits, especially suitable for purification, industrial air conditioning, fresh air systems, electronic cooling and other related applications.

ebm离心风机是离心设计中无与伦比的高压专家，具有90°空气偏转和精心优化的叶轮。

ebm centrifugal fans are unrivaled high-pressure specialists in centrifugal design with 90° air deflection and carefully optimized impellers.

多年来，ebm风机一直是电子冷却行业的佼佼者。风机结构紧凑、运行安静且高效，伙伴们有用到离心风机有相关技术问题可以私信或是给我留言哦。

For many years, ebm fans have been a leader in the electronics cooling industry. Its fans have a compact structure, quiet operation and high efficiency. If you have any technical questions about the centrifugal fan, please private message or leave me a comment.