The closed fan adopts closed rotor, which can be widely used in suction and pressure air conveying system and negative pressure conveying equipment. Its main advantages are: it can convey the air pressure in the pipe, without leakage, and can transport and collect the materials effectively, so it is called air lock in this aspect. It can not only withstand pressure, but also has the common function.

1. Close the fan, compact structure

Since the bearing and gear box of the fan are far away from the shell, the high temperature and lubrication are greatly improved.

The fan is compact in structure, beautiful in appearance and easy to use.

2. Turn off fan and reducer

A new generation of fan closing series is composed of fan closing (cast iron and stainless steel) and reducer (cycloid pin gear reducer and planetary gear reducer). It has the characteristics of compact structure, beautiful appearance, high mechanical efficiency, stable transmission, low noise, reliable use, convenient installation and maintenance.