140mm mini AC external rotor motor centrifugal exhaust fan/blower

Product Description

1. Housing

The housing of fans is made by high quality hot galvanizing steel sheet. The side plates of an aero-dynamic profile suit the corresponding air inlet size, and are sheared in a single pressed rids for the necessary rigidity.

2. Impeller

The impellers of fans are the fruits of high-technology and advanced skill. The blades have been applied with our own integral structure patent in China, which ensures the necessary rigidity and accuracy. The center-plate of impellers fit areo-dynamic profile. All impellers have passed balance test according to our own standard, which is higher than national standard.

3. Bearing

All bearings in fans are manufactured by brand name companies of Japan. These ball race type shaft bearings are hermetically sealed, pre-greased and self-aligning. Under, normal duties, these bearings are service free.

4. Motor

The motors inside are all newly external rotor motor with thermal protector inside and this insulation class of motor is F. We can also supply motors in other brand as client appointed.

5. Application

This kind of centrifugal fan with scroll is applied