Specification:

1.The ventilation fan is made into a structure where the motor is placed inside the casing, and the impeller is directly installed on the motor shaft.

2.The ventilation fan is made from the front view of the motor end, and the impeller rotates clockwise. During use, the ventilation fan is allowed to rotate in the opposite direction.

3.The casing can be made as a whole or opened axially as needed. An open casing is a type of casing where the impeller and motor are installed on a half casing that can be opened, making it convenient for on-site maintenance and component replacement.

4.The fan is manufactured with a built-in casing motor structure.the impeller is directly mounted on the motor shaft.

5.As desired,the casing can either be made into an integral one or an open type along axial direction,the impeller and the motor are fixed on the movable half of the casing so as to convenience for on-the-spot repair and the replacement of its spare parts.