Shanghai SGR Heavy Industry Machinery Co., Ltd. (formerly known as Shanghai Great Wall Reducer Co., Ltd.) has accumulated rich original design and manufacturing experience since the establishment in 1996. We are a member of the National Speed Reducer & Variator Industry Association and recognized as a pioneer of patent reducers in the line. SGR brand reducers enjoy great popularity at home and abroad. SGR produces planetary gear units, planar double-enveloping worm gear speed reducers (cone worm gear reducers), helical-bevel gear motors, worm gear reducers, helical-worm gear motors, helical gear motors and many other types of gear units. SGR gear motors and gear units have given satisfactory performance in different industrial applications, including metallurgy, mineral, architecture, shipbuilding, petroleum combination, aviation space-flight, lift routing, textile mechanic, cement, pharmaceuticals, pumps, general mechanic and others.With the advantages of high quality and competitive pricing, SGR gear motors and gear units are widely used in domestic market and have been exported to Southeast Asia, Middle Asia, North America and European countries.