The fan frame is provided with an outer frame, the inner side of the outer frame forms a hollow motor shell in an integrative molding way.

该扇框具有一个外框部，该外框部内侧以一体成型方式形成中空的一个马达壳；

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Backwards from the dust collecting mouth, the middle position of the shell is provided with the fan section which is internally provided with the pneumatic motor and vanes.

从集尘口向后，在壳体的中部位置是风机段，风机段内设置有气动马达和风叶。

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Backwards from the dust collecting mouth, the middle position of the shell is provided with the fan section which is internally provided with the pneumatic motor and vanes.

从集尘口向后，在壳体的中部位置是风机段，风机段内设置有气动马达和风叶。

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