"Wugong Brand" BL type powerful combined rotary air lock, BL-W external type bearing combined anti-clogging rotary air lock are new generation products which are comprised with rotary airlocks and cycloidal needle wheel type decelerator.

The products have many characters such as compact structure, beautiful apperance, high mechanical efficiency, smooth transmission, low noise, reliable use, ease installation and convenient maintenance, widely used to convey gas and discharge materials under the station of postive pressure or negative pressure pipe network in industries of rice milling, flour milling, feed processing machinery, pharmaceutical, chemical industry, dust-removing and other industries, the products won the national utility model patent, patent No. 2199227092.8.